Social Networking's Next Phase

But it's a good question. Both edges of the feedback loop between search and social network are interesting:

a) Social networks where we have to manually link to friends will not last.

b) Google's integrating search with notebooks, groups, hosting, email and IM. Perhaps those are primitives for a social network rather than an OS.

c) Making search more relevant using a social network is perhaps still a valid approach, in spite of the lack of success so far.