Bit of a suggestion, if you really want to grow fast try to get the website listed in dmoz.org directory. You will notice a huge increase in visitors if your site is listed there.
I have a car forum that I've run since 2005, before my site was listed there I wasn't getting many people coming to the site, after listing though I was basically on top of all related search results in google and the visitors kept coming in more and more each day. At the moment I have around 600 unique visitors daily from all over the world, at its peak a year ago that was close to 1200.
When you suggest the site on there though, make sure it is a category where there is an editor assigned, otherwise it can take years for it to get processed.
It's the best way to get the word out about any website, hopefully you guys can find a suitable category with an editor and get included.
