The Description
A short couple of sentences that explain what your site is about. Once you add it then eventually google will be listing that with your url when people search and find your site at their engine. The description is important because you can make it keyword rich. If you have chosen the special keywords that you would like to fight to the top for, then you better be sure to add these keywords in a nice sentence in this description to give you an extra chance to be listed higher. There isn't too many tricks to incorporate into the description for SEO. Just make sure you don't have any spelling errors in it. I only know of one trick which I don't find very effective. If you are feeling strategic than maybe you could try adding “ALL CAPS” for certain keywords in the description to grab more attention from the google searcher. I didn't really find that this was working well, but others claimed as far as a 300% increase with traffic.