I'm a long time internet marketer who has been using PPC for years. I've found through all my use of Google AdWords, Yahoo (formerly Overture), and now MSN that Yahoo has the best conversion rate on their PPC traffic. By that I mean the traffic coming from Yahoo PPC is of an extreme high quality so the clicks from Yahoo PPC have a higher conversion rate to becoming sales! This is of course the reason you advertise on PPC, to make sales! Although Yahoo PPC Advertising generally has less traffic than Google AdWords, it does have more traffic than MSN and as I previously stated the *quality* of the traffic is fantastic. It's a no brainer to use Yahoo PPC Advertising as a part of your marketing plan. Sign up to Yahoo PPC Advertising now and get a free $25 credit for your campaign account.