Hi:

An interesting article at 451 Group,
on VC Funding for Open Source startups.

The analysis is shown on a quarter by quarter basis,
for the years 2004, 2005, 2006, 2007 and 2008.

Notable mentions for Q3 2008 are
. Engine Yard (B)
. Fonality (D)
. Infobright (C)
. 10gen (seed)
. Chain Reaction Ecommerce (seed)

Take a look at
http://blogs.the451group.com/opensource/2008/10/16/vc-funding-for-open-source-do\
wn-12-in-q3/

thanks
Saifi.