A good way to promote your blog or website are interviews with you on other blogs and sites. Peopleized is web 2.0 service which provides a network for bloggers who want to promote theirselves by interviews:

Looking for promotion? Get interviewed by people and be exposed to new audiences. Interviews show "behind the scenes" of you and your blog/site like never seen before. Meanwhile, you will make new friends, gain links to your site and spread your message!

Full story:
http://www.peopleized.com/