Integrate the kind of social search that Newsle (http://newsle.com/) provides in a widget on the Today page.

"Newsle finds articles about you, your friends and colleagues, and anyone else you care about and notifies you minutes or hours after they're published.

Newsle's private beta launched in January 2011, and was covered by TechCrunch. The current version, which launched in February 2012 is a major evolution of the original concept. Newsle combs the web continuously, analyzing over 1 million articles each day - every major news article and blog post published online, as well as most minor ones.

Newsle's core technology is its disambiguation algorithm, which determines whether an article mentioning "John Smith" is about the right person."