I'm in need of a WebMaster task or ticket management software package, preferably with MySQL and Web integration, running Linux or OSX.

At this point I know what I need, but not sure what to call it for further searching... ( project management, task management, web ticket management, or task collaboration.) Helping define what it's called is helpful as well.

What do 'you' use to manage Web development tasks between colleagues where you work?

Your input/recommendation would be greatly appreciated.

I've found this list of Web Collaboration Software helpful. If anyone knows of other such resources that may help my awareness, learning, comparison please reply. Most of these are more than I'm looking.