We have the runtime version of LANSA that came with a package that the developer used to provide web capabilities. But it’s a canned application, so without the developer’s license it’s hard to know how good it is (it appears complicated, but it may not be). Last we checked, the license cost $9K (which seemed like a lot just to tweak some code), but i don’t know if that’s the final cost or if there’d be more things to buy.
Don’t have any actual experience yet, but we’re going to be looking at a product called Websmart by BCD. It looks pretty promising. Another product that looked good was RPGsp (i think) by Profound Logic.
I’ve dabbled a (very) little with CGI and it looks like you could do a lot with that also. You could download CGIDEV2 from www.easy400.net. It’s free, has tutorials and also looks like it would accomplish a lot.
When i first started programming i hated RPG. But with ILE and free format calcs, RPG has evolved into a very good language. I doubt there is much you couldn’t do with it.
Hope this helps!