If you haven’t looked at your site’s Google Webmaster Tools account recently (you have got one, haven’t you?), then it might be worth doing so. There’s a steady stream of innovations there, and one of the most recent is the introduction of historical data for the search terms where you’re showing. I’m finding this quite useful to see search terms where the sites I’m monitoring have stabilised at between position 5 and 15 in the Google results, traditionally the areas where you can get a big increase in traffic from a small improvement in the rankings. Lots of insight there.
The “Links to your site” feature has also been updated to show which domains link the most to your site, the pages on your site with the most links, and “a sampling” of the anchor text external sites are using when they link to your site.