The two best that I visit, even though I don't post on, are Rebel Scum, like Rogue mentioned, and Galactic Hunter.
Rebel Scum is really nice for sightings, listings, reviews, galleries, etc, as well as pretty much being first in getting news. Only thing is, is that their forums are really crowded (even more than here) with lots of people, so topics tend to move pretty fast.
Galactic Hunter is just all around a really nice sight. Not as comprehensive as RS, but still a damn good site. Their forums are nowhere near as crowded as RS, and tend to move a little slow. Take a look.......http://www.galactichunter.com/
Then there is also the SW thread here too....