I use it mostly for research since I'm in college, study both education and psychology, and am in the process of writing an honors thesis. Communication would come second for me since I have found that e-mail and social networking is convenient and easy. I can't say I use it much for media--I do buy songs on iTunes to use on my iPod but I'm a sucker for CDs since I like having liner notes with lyrics, enjoy the portability of the format, and still get a thrill out of going to a music store and buying a new album. I do shop online sometimes but only for certain items--if it's something like clothing or shoes I'd rather try it on in person and if it's something big I'd rather just pick it up than have it shipped for a huge amount of money. (This would be something like a TV).
Aside from MarioKart Wii I don't use the internet for gaming. I'd rather play with folks sitting next to me, not 100 miles away from me, because human-to-human interaction has always been the great part about multiplayer games.
Lately I've been using it as a TV substitute as well. I like getting the news online since I can pick and choose what I want to hear (I hate watching the TV news--if I have to hear about something trivial like John and Kate one more time I'm going to blow a gasket). If I'm working at my desk I'll use the online game trackers from NHL, MLB, and NFL to see what my favorite teams are doing if I can't actually watch the game due to other work (believe me, if I could watch hockey every night instead of work I probably would). I've used the online weather since it was a feature on AOL; the same goes for stock quotes (way back in middle school I played the stock market game so I used to check quotes online al the time and still do since I own some stock these days).
I honestly don't watch much, if any, TV outside of news, weather, and sports. I'd rather be playing video games since I hate just sitting around with nothing to do.