Propeller is reported to be Google's first foray into social-news magazine apps.
In a rare official partnership for the social network, Facebook Connect comes to the Huffington Post to fuel its new HuffPost Social News service.
Now open-source, the Conde Nast-owned company opts to allow developers to co-opt its technology for third-party sites. It might not push it up to rival Digg's level, but it's a nice move.
Looking for the Top 10 Worst Cartoon Porn Movies of all time? Perfect. But if you're in search of real news, this won't help you much.
Giving users a cut of the Knewsroom ad revenue is an interesting new take on social news, but Kluster is a small site without the eyes to pull in that revenue.
Widgets and RSS feeds are among the minor additions to the Yahoo Buzz beta.
Can machine learning for news have a human side? Find out with Tiinker, a machine learning based news aggregator.
Today, Spotplex pushed a new version of its news and analytics service live.
Want to see the social news in pictures? Check out PicUrls!
MSNBC now owns Newsvine; find out what's changing and what's not about the popular social news site.