Hi
I've only just started using blogs in an effort to gain prospects. What I like about them is that they are free and I don't mind 'playing' with them. I just try to write something everyday. I feel that it doesn't have to be long, just a thought on the subject. Short and often is preferable to lengthy articles with long gaps of time between.
The idea is to get your blog out there to people as often as possible. That way you have more chances of collecting more readers.
With your blog I would write snippets of interesting information each day - it will soon build into something substantial. You will also find out whether anyone is coming to look and this will help you to decide to have a standard web site on your subject.
Hope this helps
Unity
http://becomewealthy.wordpress.com/