Facebook Pages are becoming a lot more like Twitter in terms of the ways marketers can use them to reach and engage people inside Facebook. Twitter has proven that the "status update subscription + news feed" conversation model works well for a variety of marketers - from large brands to self promoters like bloggers, consultants, and real estate agents.
Bloggers, a Twitter landing page may be a better introduction to you than the front page of your blog. When folks click on a link under your Twitter picture, they're curious about YOU, and don't want to navigate a confusing blog page.