What are some good sites to find condos for lease/rent besides craigslist?

for Diamond Bar and Chino Hills, etc?

Any sites where I can find condos for rent in Southern California?

Condos or good apartments. I tried craigslist.

Can anyone tell me some good free sites to post houses/condos/apartments etc. for sale/rent?

Please only post free websites. Also if anyone knows of any greater Sacramento area websites, that would be great