Guest posting on other blogs is a great way to get backlinks to your site. It is also a great way to get some free traffic. If you want to write a 300+ word guest post on my link building blog, about any topic that has to do with link building, then please PM me or use my blog's contact page.
Cool idea! What do you think about a post about directory submissions? Links would go to two of my sig links. Let me know.