My latest teaser for Netscape 9 is up at the Netscape blog:
"Netscape 9 will include built-in tools to share, vote for, and discuss interesting things you find on the Web directly from the browser's URL bar. [...] We feel that having these tools in the browser by default will introduce the idea of social news to a whole new set of users, and it should make it easier for those who are already familiar with the concept."
Something I'll add here is that while this announcement reveals the main pieces of this feature (in-browser voting), it does not reveal all of the features of this piece.
There's an additional forum for discussion at Netscape.com.