Alec Brownstein, a writer, needed a job. So he chose the names five NYC advertising directors that he'd like to work for. Then he bought an advertisement in Google that would be displayed when each person searched for his own name. So when they Googled themselves, they saw an ad from Brownstein asking for a job. He got two job offers. The cost was just $6.
Link via Urlesque
UPDATE: Google ads, not search results. I misunderstood and have corrected the post.