A very efficient way of boosting your google ranking is to be listed on the
DMOZ Open Directory Project. Google gives so much importance to listings there, so it is a good idea to try your best to be listed there.
Also, since Google works by checking the links to you, it's a good idea to go through your web server logs to find which are the pages which are linking to you. Submit those to as many search engines as you can afford to. Besides having Google seeing more links to you, more people would be entering that page which is linking to you, and thus more people are likely to click on your link. Hence more hits!