These questions get asked often:

• How do I increase traffic to my blog? 
• How do I get people to read my blog? 
•  How do I get ranking for my blog?

If you POST on other people's blogs, then link back to YOUR BLOG, you'll have people linking to your blog.. especially if you have interesting content.  Its that simple.

To post to other people's blogs, simply go to google.. type in this search : Real Estate Blog

http://www.google.com/search?hl=en&lr=&q=%22real+estate%22+blog+url+post

Then find a page that has the ability for you to post your own comments to THEIR blog.  A form that you'll want to post to looks something like this :

Put in your name as Real Estate Agent -- or REALTOR .. You can also just put your name in..  Be sure to put your URL in, and a correct, working email address.  The COMMENTS Need to be relavant to the conversation on the page.  If not, the owner of the blog will get bent out of shape and call you a Spammer.  If so, move on.  It doesn't matter, but try to be a good net citizen and post relevant content to another person's blog.  The url link back will be something like this :

http://www.YOURDOMAIN.com/blogs

This link will lead the person back to your blog.  Thats how you promote your blog.