But arent you selling seo from that site? Optimise your page titles and also link to the root domain instead of index.php
My review: Congratulations. There is little room for improvement here. If you have good positioning already it doesn't hurt to steadily increase your inbound links and site content. If you do not have positioning yet; it may be because your site is too new or a number of other factors. The key is to be patient and keep up the good work.