Like other aggregation sites, Social Median now features an "Add links and feeds from your sites" option, enabling you to add hooks to your third party services. Users can then specify if you want all your updates flowing through Social Median, just those with specific keywords, or if you specifically tag them as being for the site.
And as Social Median has offered since debuting in beta a month ago, you still have the option to follow individual users, known as "news makers". But you can now filter their updates to be relevant to your news networks, by selecting "only relevant updates" instead of "all updates". Jason playfully uses me as the example in this morning's announcement, saying "I may only want to follow Louis Gray when it comes to technology and politics, but not his interest in fathering."
And finally, Social Median has entered the "most popular today" arena, displaying stories that have been deemed popular over the last day, week, month, or are rising fast. This falls in line with tweaks made at FriendFeed to show the best of day or week, and the many other sites dedicated to finding hot content, from ReadBurner to Techmeme.
This is an aggressive upgrade for Social Median, which we've been publicly watching develop since April, and one that's intended to get the site a bit more attention before their participation at the TechCrunch50 conference next week. With the addition of more news ingestion sources, popularity tools, and blogging widgets, its clear Social Median is looking to get more visible, more useful, and more robust. You can find my news stream at http://www.socialmedian.com/louisgray.
DISCLOSURE: I am an advisor to ReadBurner.