If you want to know what the buzz on the social web is about right now there are a few places you can start. Twitter search, Google live search results, Facebook - almost every "web 2.0 service" has a means to search and find out what's hot right now.
This can however take a lot of time which is why it would be cool to have one service that covers a lot of different destinations. There is one, which is the Yahoo Firehose which is available through YQL. Check the following screencast to see it in action:
The Yahoo Firehose has a lot of different update sources in one simple XML feed. Right now, we support the following sources (also listed in the Yahoo social API documentation): Yahoo! 360, AOL, Bebo, Blogger, Bloglines, Digg, Diigo, Goodreads, Google, Google Reader, Last.fm, Ma.gnolia, Movable Type, Netflix, Pandora, Picasa, Pownce, Seesmic, Slideshare, SmugMug, StumbleUpon, ThisNext, TravelPod, Tumblr, Twitter, TypePad, Vimeo, Vox, Webshots, Xanga, Yelp, YouTube, Zooomr, Yahoo!Read More »from Social web research made easy with YQL and the Yahoo Firehose