Hi, this is Dave Rigotti from the Virtual Marketing Blog. My favorite PPC search engine is Google, mostly for its shear size. It’s also scalable. If you want to run long, obscure, and mistype tail terms for a cheaper (but lower volume) cost-per-click, you can. If you want the volume, and are willing to pay for it, you can.
Their API is amazing, which makes bid management with a third party like efrontier much easier to manage. Yahoo!’s Panama is fairly close, but everyone else (including MSN) can’t match the API.
SEO experts also optimize for Google listings and we know that when an organic and paid listing are located on the same page, the click-through-rate is increased on both. That means more clicks at a cheaper rate.
And lastly, Google IS the search engine. It’s stable, and it’s market share is more than double the closest competitor.