SiteWit

Billed as a "brain for your website," SiteWit is probably better described as a search engine marketing engine for improving and optimizing SEM campaigns dependent upon pay per click (PPC) advertisement placements. When integrated with AdWords or Bing Ads, SiteWit automates bids; hence it is a bid management system. Should your website need a brain, the free edition contains analytics, while the $9 provides a lean set of lead generation and social sharing tools. For $50 per month SiteWit's full features are unleashed, that is, it does as advertised and automates management of SEM for small to midsize businesses (SMBs).