Tizish 

For a Real Estate Blog that doesn't look like every other real estate agent's, check out Josh Galvin's Tizish.

If I sold real estate this is the only one I'd use. The support is great and the tutorials will guide you through every step.

Social Media Examiner

If you're into social media, and of course by now you know you need to be, Michael Stelzer's Social Media Examiner is the world's largest online social media magazine. He will keep you up to date on everything that's important in social media.