Is it possible to set up a blog site where a person can subscribe to only one "Category" or combination of categories instead of the all of the posts?

Example:

We have three categories under the posts:
Blog 1
Blog 2
Blog 3

Instead of the end user subscribing to all Blog categories, can someone just subscribe to Blog 1, or the user can choose to just see Blog 1 and Blog 3? We also want them to have the ability to subscribe to all. I know I could just set up three different blogs and have the end user subscribe to each on individual. I was wondering if there is another solution to make it easier for the user.

Thanks for any help!