CallTrackingMetrics - Know who is calling and how they found you. Maximize the return on your advertising.

Traq - Traq is a PHP powered project manager and issue tracker featuring multiple projects, milestones...

Invoca - Call tracking & analytics software

16bugs - 16bugs is an all-in-one bug tracking software that makes it easier for you to manage all sorts of bugs in performance with the simple interface; ultimately, you will be more productive for sure.

Scorebuddy - SO WHAT IS SCOREBUDDY ALL ABOUT? Years ago, physical score cards or computer spreadsheets were used to track customer interactions.

Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.