Lots of interesting information for buyers and sellers (can also search for homes):

National Association of REALTORS^®

If you're selling a home, chances are you're also buying one. Which first?

The Buy-Sell Dilemma

What You Should Ask:

Finding a Good Home Inspector

Sites to allow guests to search for homes:

HomeSeekers.com

MSN House & Home

homebuilder.com

Loans Resources:

Quicken Home Loans

Information in Chinese:

California Department of Real Estate