how now?

I think one could quite easily put together a critical mass of astro blogs. Not necessarily with the dough, though.

Yes, I think there is a critical mass of astro blogs, though a few of the bigger ones would not join any sort of co-op.
An astro/physics/geo blog collective would also be interesting.

But, I think the structure of scienceblogs is better still, they got that right - a mix of all the sciences, with a range of blog styles and types - I know I like to get a glance at the bio and geo blogs, and sometimes dig into topics there, and I get the impression they like to see the astro/physics stuff pass by also.

The money is not critical for me, I am not trying to make a living off blogging, but with any modicum of traffic it is useful to have tech support and some management.

I don't know in the current economy if anyone would want to try this, or if a new co-op can grow to the sort of gross net.audience that Sb has.
Size has a quality all its own sometimes.

Anyway, End of The Net: Film at Noon
or so I hear.