Santa Monica-based Business.com, which provides online directories for B2B purchasing, announced today that the firm has launched a new tool to help advertisers access pay-per-click metrics on the site. According to the firm, the new Business.com Conversion Tracking tool has been in beta since March, and is now available to all of its advertisers. Business.com claims that the metrics in the tool are unavailable through other web analytics programs, and specifically addresses limitations in such products like Google's Urchin analytics tools. Business.com is now owned by R.H. Donnelley; the firm was purchased by R.H. Donnelley back in 2007.