What a good idea! This should be a permanent thread, just for people (like me) who frequent the site but aren't total pros on being in the hospital for long periods of time.
If you're into facebook, I highly suggest checking failbook.com and lamebook.com out. They kept me laughing for hours this last hospital stay. If you're not on facebook, JOIN FACEBOOK! Haha. I've actually found a ton of mindless games through fb (NOT farmville). I'm talking bejeweled, family feud, tetris, etc. They're stupid and some are so easy they get boring REALLY fast, but they pass the time.
Bubblebox.com is a site of nothing but free games...games you don't have to download or mess your computer up with (if the hospital allows access to that one). There are stupid ones, really hard ones, puzzle/skill, kids games, the works!
Are you an animal lover? Actinglikeanimals.com and dailysquee.com are pretty cute and funny. Pics/videos of animals doing funny things (I'm a huge nerd).
Because I'm in the hospital, and usually feeling INCREDIBLY lonely, I tend to read other CFers blogs. A lot of them. A hospital stay is what got me reading nate lawrenson's blog (tricia) and I've kept up with it ever since. I've found it's a way to pass the time without feeling as alone and isolated as one usually can get being in the slammer.
That's all I have right now, sorry if those kind of stink, lol. Hope you're feeling better soon!