Wikipedia--I like it.

Nature

Or maybe I don't:

The Register

Bloglines

I'm not impressed with Twitter. I can't get used to checking my cell phone often enough to make it worth carrying; having it bleeping at me all the time to find out my sister is eating a ham sandwich would make me nuts. (Most weeks my cell phone spends two days sitting alone on my desk charging (yes, I know that only takes a couple of hours) because I forget to take it to work.) But I like RSS feed. I surf a lot of sites looking for new posts since last I looked. An RSS feed page would be useful to me. But not on my phone.