Something I have not looked at before is SEO.
Google have some site management tools, Google WebMaster Tools
You need to authenticate your site first.
For some reason it took me ages to figure this bit out, maybe its not clear enough and my google-fo was lacking that day.
Under Tools -> Tools there is a Webmaster verification section where you can post your metatag.
Once authenticated, you can view Keywords, Links, number of clicks… all that kind of stuff. You can submit sitemaps so Google can index all the pages.
Useful for finding out how Google sees your site.
You can add a number of sites and they are all managed under your Google login.