I make sure I do about 6 posts a month from nutrition questions to exercises to fitness topics or news posts. That gets me a little under 2,000 hits a month. I than take the blog posts and put them on my facebook/twitter page. Its a great way to stay in touch w/clients and build up your “voice”. It’s also an awesome reference tool (including for you). Clients ask me questions and I send them to a pg on my blog.
Make sure you use key words and do consistent quality posts. That equals success!
Here’s my blog: http://thepilateshundred.blogspot.com/