Sulia is a social network of social networks; that is, it is a social network that tracks various social networks, and other sources, on your behalf and aggregates information relevant to you.
From http://sulia.com/about:
Sulia is a subject-based social network that connects you to the top social sources on subjects you care about.
We all have interests that we're extremely passionate about. Whether it's our family, a sports team, breaking news, Hollywood gossip, a hobby, a career or a political issue, we obsess over our interests everyday.
However, with an endless number of sources talking about an endless number of topics, it's nearly impossible to find the best sources to follow across your interests. And, even if you were able to identify the top sources, sifting through all of their content is maddeningly time consuming.
We built Sulia to address these problems (which were driving us mad too).
Sulia's subject-based structure of social channels connects trusted sources and enthusiasts on shared interests across thousands of subjects, including breaking news and events. How?
We use a combination of network managers and sophisticated algorithms to identify the best-regarded sources across thousands of topics. We then dynamically filter content from those sources, regardless of where it's created (a blog, a social network, a media site, through Sulia's publishing system, etc.), into high-quality, realtime social channels. The result is streams of timely content from trusted sources that is always on-topic, readable, and relevant.
People use Sulia everyday to discover new sources and engage with their interests. We hope you do too!
It has a number of "buckets" -- Android, Microsoft, Information Security, Open Source, etc. -- and for each presents columns for "Live," "Featured," and the "Leaderboard." There is also "Suggested" trending topics (right now, the top three are Newtown Massacre, Daniel Inouye, and Royal Baby).
En toto, for the interests I picked, there are still too many items for me to stay on top of; there is a daily email summary, but it's too selective (too few) for my purposes.
The idea is promising; it would be the bee's knees if I could tune the email summary.