I've found these real estate blogs to be interesting and in some cases helpful. I'll add more as I find them!

California
The San Francisco Real Estate Blog

Beautiful Santa Barbara Blog

Keith Byrd's San Luis Obispo Real Estate BLOG

Southern California Real Estate Blog

Grow a Brain Real Estate Blog, Riverside California

Florida
John Mudd's Inside Real Estate Journal - Real Estate News and Tools From an Insider, Plus Homes for sale in St. Petersburg, Tampa, Clearwater, Seminole, Largo, Pinellas Park, Dunedin, Tarpon Springs, Oldsmar, Treasure Island, Florida's Gulf Beaches and more...

Southwest Florida Real Estate

Minnesota
Real Estate Randomness

Misc. Real Estate Blogs.
HomeBlog™ Your Home Blog for your family, Real Estate Blog and Home News

LOCATION LOCATION LOCATION It's all about (Real Estate)

Harry's Blog: Real Estate for Real

Blogcritics.org: Right Lender's Often Right Piece To Complete Your Buying Puzzle

Realtor.org - Web Intelligence Summary - Weblogs

Ohio
Cleveland Real Estate Blog