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Apple, BlackBerry, Google and Android….we’ve built a list of the top experts and professionals across the Twitterverse who share and report their mobile knowledge. Ten of our favorites are listed below; tell us in the comments below if we left anyone off!

• Paul Golding (@pgolding): Chief mobile scientist

• Benjamin Robbins (@PaladorBenjamin): Principal at Palador
  

• Chetansharma (@chetansharma): Mobile author/editor

• Anne Thomas (@socially_mobile): COO/co-founder of Wapple

• Maribel Lopez (@MaribelLopez): Founder of Lopez Research

• Bob Egan (@bobegan): Founder of The Sepharim Group
  

• Mark Guim (@markguim): Blogger at The Nokia Blog

• Ben Smith (@bensmithuk): Mobile tech blogger at Wireless Worker

• Richard Hyndman (@geekyouup): Android developer advocate at Google

• Ben Wood (@benwood): Mobile industry analyst at CCS Insight

Follow them all (and other mobile experts) through our Twitter list.

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From cybersecurity to web security, we’ve built a list of the top experts and professionals across the Twitterverse that update and share their security knowledge. Ten of our favorites are listed below; tell us in the comments below if we left anyone off!

• Graham Cluley (@gcluley): Technology consultant at Sophos
  
• Tom Eston (@agent0x0): Security aficionado
  
• Dave Marcus (@DaveMarcus): Chief Architect, Advanced Research and Threat Intelligence, McAfee Federal Advanced Programs Group
  
• Mikko Hypponen: (@mikko): CRO at F-Secure
  
• Jeremiah Grossman (@jeremiahg): Founder & CTO of WhiteHat Security
• Paul Asadoorian (@pauldotcom): Founder of PaulDotCom
• Lenny Zeltser (@lennyzeltser): Security expert at NCR Corporation
• Brian Krebs (@briankrebs): Internet security journalist
• Bruce Schneier (@schneierblog): Security guru and author
  
• Dan Philpott (@danphilpott): Editor of FISMApedia.org

Follow them all (and other security experts) through our Twitter list.

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Want to know the latest news and updates surrounding storage? We’ve built a list of the top experts and professionals across the Twitterverse that update and share their storage knowledge. Ten of our favorites are listed below; tell us in the comments below if we left anyone off!

• Stephen Foskett (@sfoskett): Storage expert/IT consultant
• Stephen O’Donnell (@stephenodonnell): CEO of GreenBytes
• Greg Schulz (@storageio): Independent IT advisor
• Calvin Zito (@HPStorageGuy): Storage expert at HP
• Stuart Miniman (@stu): Analyst for Wikibon
• Chris Mellor (@Chris_Mellor): Storage writer for The Register
• Bas Raayman (@basraayman): vSpecialist for EMC
• Robin Harris (@StorageMojo): Data storage analyst
• Ed Saipetch (@edsai): Technical Director at Savvis
• Jay Livens (@JLivens): Marketing Director at Iron Mountain

Follow them all (and other storage experts) through our Twitter list.

Check out the Storify below, or view it here and let us know your favorite IT-related blackout tweet from last night’s game.

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Want to know the latest news and updates surrounding big data? We’ve built a list of the top experts and professionals across the Twitter world who update and share their data gossip. Ten of our favorites are listed below; tell us in the comments below if we left anyone off!

• Manish Bhatt (@imbigdata): Big data enthusiast
• Michael Driscoll (@medriscoll): CEO of Metamarkets
• Peter Skomoroch (@peteskomoroch): Data scientist at LinkedIn
• James Kobielus (@jameskobielus): Big data evangelist at IBM
• Roger Ehrenberg (@infoarbitrage): Big data VC at IA Ventures
• Ben Lorica (@bigdata): Chief data scientist at OReilly Media
• Andrew Brust (@andrewbrust): CEO of Blue Badge Insights
• Paul Miller (@PaulMiller): Analyst for GigaOM
  
• Jeff Kelly (@jeffreyfkelly): Technology market analyst for The Wikibon Project
• Dan Vesset (@DanVesset): Vice president at IDC

Twitter image via Shutterstock

Are you looking for the latest news and updates on cloud computing? We’ve compiled a list of top experts and pros from across the Twitter universe who regularly share and discuss their cloud knowledge. Ten of our favorites are listed below; follow many more through our handy Twitter list.

• Marc Benioff (@Benioff): CEO of Salesforce.com
• Adrian Cockcroft (@adrianco): Cloud Architect at Netflix
• Simon Crosby (@simoncrosby): Co-founder and CTO of Bromium, Inc
• Brian Gracely (@bgracely): Director of Tech Marketing at EMC & Cloud blogger
• Scott Guthrie (@scottgu): Vice President of Microsoft’s Server and Tools Business Division
• Chris Kemp (@Kemp): Founder & CEO of Nebula
• David Linthicum (@davidlinthicum): Founder of Blue Mountain Labs
• Marten Mickos (@martenmickos): CEO of Eucalyptus
• Krishnan Subramanian (@Krishnan): Principal Analyst, Rishidot Research LLC
• Werner Vogels (@Werner): CTO at Amazon.com

Who’d we miss? Let us know in the comments about the cloud computing experts you follow on Twitter.

IceCubbe recommends keeping up with the Loaded daily video to keep “up to date with all the latest happenings in the IT world.”

Whether you’re looking for a top of the line security podcast, job listings, or opinions of like-minded tech folks, ErroneousGiant recommends you pay a visit to Risky Biz. With over 170 podcasts published since February 2007, Risky Business has quite the archive, as well as forums and a second podcast, RB2. Looking for some reading material? ErroneousGiant also keeps up with Sophos’s Naked Security blog, where you can find updates on the latest Facebook phishing scam (probably updated hourly) and hacking or security issues from courtrooms all over the world.

Carlosdl suggested a couple Twitter accounts whose shortened URLs it’s probably safe to click: @helpnetsecurity and @FSecure. Help Net Security’s Twitter stream is managed by Mirko Zorz, editor in chief of Help Net Security and (IN)SECURE Magazine. F-Secure’s Twitter stream highlights the latest headlines in security.

There is an impressive array of Twitter accounts and blogs to follow, no matter what area of IT your focus is.

Networking: Twitter & Blogs

Storage Virtualization: Twitter & Books

Desktop Virtualization: Twitter & Blogs

Windows 7: Blogs

Security: Twitter & Blogs

Of course, checking out the Enterprise IT Watch blog and @ITKE on Twitter is always a good place to start.

Did we miss anyone? Let us know in the comments section or in the forums.

Melanie Yarbrough is the assistant community editor at ITKnowledgeExchange.com. Follow her on Twitter or send her an email at Melanie@ITKnowledgeExchange.com.

Networking Pros

@packetlife: Follow for updates on his community PacketLife.net and his Lego adventures.

@Archimedius: Greg Ness knows networking, virtualization, security, cloud computing, and data centers. Get his take on these areas of IT on his Twitter feed or at his blog, Archimedius.

@mfratto: Mike Fratto wants you to know he’s not quite as grumpy as he seems. He also has ample knowledge in network computing, with focus on infrastructure and security.

@swackhap: Patrick Swackhammer has a cool name and knows his way around a network.

@corq: A self-proclaimed “network/sysadmin/security nrrd.”

@stu: This Wikibon researcher and analyst focuses on networking as well as virtualization and cloud computing.

@joltsik: He’s a blogger at the Enterprise Strategy Group, blogging about networking security among other IT topics.

@aneel: His tech interests range, but he has quite an archive of networking posts at his blog.

@ahojmark: Follow for updates from CCIE #8525, a self-proclaimed “network nerd,” tweeting from Denmark.

@storageio: Greg Shulz has authored Resilient Storage Networks: Designing Flexible Scalable Data Infrastructures and other titles that contribute to the field of storage networking.

@ioshints: Recommended by @stu, Ivan Pepelnjak has been “designing, installing, troubleshooting, and operating large service provider and enterprise WAN and LAN networks since 1990 and is currently chief technology advisor at NIL Data Communications, focusing on advanced IP-based networks and web technologies. His books published by Cisco Press include MPLS and VPN Architectures and EIGRP Network Design.”

Vendor-ish

@CiscoPress: Follow for updates on the latest titles and resources for networking self-study materials.

@Juniper_World: Get updates on the networking industry and Juniper’s latest news.

@sonicwall: Get updates from the company that is “Relentlessly Engineering the Cost Out of High-Performance Secure Networking.”

Melanie Yarbrough is the assistant community editor at ITKnowledgeExchange.com. Follow her on Twitter or send her an email at Melanie@ITKnowledgeExchange.com.

Videos such as this one spark a certain amount of nostalgia, not only for the clunky monster of a PC on Roger Fiddler’s desk but for the days before the Internet made everything so much easier and, well, so much harder. While Knight-Ridder had a little too much faith in man’s continuing loyalty to the newspaper, they pinpointed the crossroads where many vendors find themselves: “We may still use computers to create information but we’ll use the tablet to interact with information.”

This might account for the changing numbers as outlined by Tom Nolle at the Uncommon Wisdom blog:

PCs are not seeing the growth they once did…Some of the slowing is due to tablet encroachment, but most is likely due to people just not upgrading as often.

But the fruition of visions such as Knight-Ridder’s 1994 prediction about tablets marks another change, not only within the tech industry, but in the way the rest of the world interacts with the IT department. Interactions aren’t lassoed solely within a company’s in-house messaging or email system. Despite social networking services aimed at the enterprise such as Salesforce.com’s Chatter, users are still all over sites such as Facebook and Twitter, and not always for strictly business purposes. Sure, you could throw some policies at it and even make examples out of a few repeat offenders, but what happens when you’re the President or, more realistically, you work in a high-profile government office where quips on Facebook can have serious and reverberating effects?

Tuesday’s hearing on how the Presidential Records Act of 1978 applies to presidential record keeping of digital communications on the web brought up some of the gray areas facing enterprise IT departments everywhere. Philip Klein reports for the Washington Examiner:

Back in 1978, in the post-Watergate era, Congress passed the Presidential Records Act to preserve White House communications. But a lot has changed in the past 33 years, and on Tuesday the committee held a hearing about updating the law in an era of texting, instant messaging and social networking.

As House Oversight and Government Reform committee chairman Rep. Darrell Issa, R-Calif., noted that legislation did not foresee Facebook and Twitter. There are currently no restrictions on the personal items White House employees are allowed to bring into work, including tablets that would presumably allow them to send communication via personal accounts on outside cellular networks. While White House policy mandates that employees who conduct official business on personal email accounts forward those interactions to their work accounts, there are no firm policies on social networks such as Twitter, Facebook, IM, and mobile text messaging.

Updates to the law were suggested, but as David Ferriero, archivist of the U.S. at the National Archives and Records Administration (NARA), stated, “Ultimately, responsibility for records management will always rest to some degree with individual federal employees, no matter what systems are in place. That was true in an era of exclusively paper records, no matter what systems are in place.”

Sadly, this seems to be the fallback of most enterprise IT security programs as well.

Melanie Yarbrough is the assistant community editor at ITKnowledgeExchange.com. Follow her on Twitter or send her an email at Melanie@ITKnowledgeExchange.com.

@storageio: Member Gregs, or Greg Schulz of StorageIO.com, is an independent blogger, advisor, author, and consultant in the storage industry.

@SFoskett: Enterprise IT consultant whose focus is data storage and virtualization.

@storagebod:His experience as a storage manager lends to his knowledge of storage via disk and tape.

@storageanarchy:Business strategist and enterprise storage technologist.

@StorageNerve: A chief technology officer knowledgeable in storage and virtualization systems.

@StorageMojo: “A data storage analyst, consultant, and blogger focused on emerging markets, technologies, and products.”

@HPStorageGuy: Calvin Zito of HP Storage tweets about the technology, which he’s been involved in since the mid-90s.

Virtualization Pros

@ericsiebert: Author, blogger, vExpert, and VMware evangelist.

@rbrambley: He’s a blogger with interest or experience in virtualization, Veeam, VMware, Microsoft, VMETC.com, and Virtumania.

@gabvirtualworld: This virtualization geek knows VMware.

@VMDoug: Employee of Veeam software, Doug knows VMware, virtualization, and Hyper-V.

@sbeaver:This author and speaker is a virtualization evangelist.

@Beaker: If you’re in IT and on Twitter, chances are you’re following this guy anyway, but I wanted to throw him in for good measure. He works in cloud and virtualization security at Cisco, and he’s pretty entertaining as well.

Have someone to add to the mix? Let us know in the comments or send me an email at Melanie@ITKnowledgeExchange.com.

Melanie Yarbrough is the assistant community editor at ITKnowledgeExchange.com. Follow her on Twitter or send her an email at Melanie@ITKnowledgeExchange.com.