Many SEO companies look down on pay-per-click marketing - at best, it is considered the poor cousin of search engine optimization.  However, pay-per-click has its uses: it is a great way to establish some initial brand equity and get some traffic when you have a brand new site, and it can be a valuable way to determine the opportunities that a particular market holds.What do you think of pay-per-click?  Pointless, or occasionally useful?  Share your thoughts in the comments!