For those of you familiar with Digg, Puurple looks very similar. The site allows you to post your favorite real estate stories and vote on them, just like Digg. Submitting your blog posts to Puurple will also help draw in more traffic to your site.
In all fairness, I must disclose that my husband Charles is a moderator on the site (aka spam killer). Posts not related to the real estate industry (mortgage, etc) will be removed. You will need to sign up for an account (it's free) in order to be able to submit and vote on stories.