good question !
How to search for content within “Blog” ?
I just created a TRAC-ticket for enhancement:
https://trac.buddypress.org/ticket/1206
there are a couple of different plugins available to search across blogs in a WPMU install already. If there’s a hook in the search bar to add this option this would be better.
Not all setups will have blogs available to members.
Same problem. I get a single blog buddypress installation (no wp 3.0 blogs network activated). I don’t see any option to search in blog posts. I don’t find any plugin too ??? Does anyone know where to search for this ?