http://www.readwriteweb.com has a good overview of the social-networked news sector. Not surprisingly, "digg" continues its dominance in the field while Netscape is lagging.

Conclusion

There are really no surprises here - Digg is the king of social news. It is simple, elegant and very very popular. The question is what will happen going forward? Comparing digg with Netscape, note the difference between the number of votes on a technology post vs. a political post. For the technical post there is a huge gap between the two sites, but it is not as big for the political one. So digg remains the premier social news site for technology news - but in other categories that are geared more towards mainstream, there is not as much activity.

The question is will the digg model work for mainstream? It might be too plain, which is why Netscape jumped into the game - and this may be why Newsvine has a chance to be successful. But as it stands, and for foreseeable future, Digg rules!