Welcome to freeblogs! This is where you can make blog posts about whatever you want here. Great for SEO, talk about some of the sites you're working on, link to your own site, tell us about what you do, and the links will be seen and counted by google. That easy.

For example, I want a backlink to my Hosting Sites toplist. Now I get a free backlink and don't have to go around spamming people.

Of course blatant abuse and spam will not be tolerated, and you will get banned or have your posts deleted.
Since this is mostly beneficial to people who work online and do SEO themselves, there's also a place for just random chit chat, SEO discussion, and a place to talk about various ways to make money online.
Adding links to your signature means that every conversation you have helps you out, so have fun.