Read Katie's post about twitter and curtion tools.
Here's just one interesting insight:
"I could see using Paper. li or even Tweeted Times with my students when we are doing Problem-Based Learning Units. I think being able to sort through all the information with a few selections would help keep them on track and alleviate some of the panic from information overload that can sometimes set in. I think the general organization of each site would help them sift through the millions of articles, videos, reports, etc published very day."