@bob bob I assume your comment is tongue-in-cheek, but just in case: we don't. We earn the Google-love the old-fashioned way: by writing content that doesn't suck and that people link to organically. Pretty good summary here.
My employer gets emailed by search engine optimizers all the time, telling us that they can improve our search engine ranking by buying links for us. This is particularly sad/hilarious because I work for Wikipedia.