The SOS site was crashing earlier, but it seems to be OK now.
They are posting results in PDF files about every 1/2 hour. It also shows which counties have reported - and not.
http://www.sos.ca.gov/
(CLICK “*Election Results*” under the Yellow “My Vote” box — it links to a pdf file that is constantly being updated)
Otherwise, I seem to be finding the most current results being reported at Townhall (they have had more current info than SDUnion Trib, SacBee, CNN, etc. )
http://election.townhall.com/election-2010/state/CA/
State Senate District 28 Name Party Votes % Jenny Oropeza DEM 67,419 54.2% David Ruskin LIB 7,351 5.9% John S. Stammreich REP 49,782 39.9%