That code is for Google Analytics, which used to be Urchin. There is nothing to worry about with that code, it is just relaying weblog stats to Google. The main thing you want to look for, if you have the time, is meta code using the “nofollow” attribute. That tells search engines not to follow the link on a page, and essentially cancels the vote being cast by a site for that link. I’m not all that familiar with the tag, but I’m guessing you can use it in individual hrefs as well. Would be a good tag however if you wanted to point out a rogue casino or something, but didn’t want them to get credit for a link.