There're many solutions, from installable software such as Redmine[1] to hosted services such as TenderApp[2], GetSatisfaction[3], UserVoice[4], ZenDesk[5], Fre

There're many solutions, from installable software such as Redmine[1] to hosted services such as TenderApp[2], GetSatisfaction[3], UserVoice[4], ZenDesk[5], FreshDesk[6], Groove[7], etc. It all depends on what your needs are. [1] http://www.redmine.org http://www.redmine.org [2] http://tenderapp.com http://tenderapp.com [3] http://getsatisfaction.com http://getsatisfaction.com [4] http://uservoice.com http://uservoice.com [5] http://zendesk.com http://zendesk.com [6] http://freshdesk.com http://freshdesk.com [7] http://groovehq.com http://groovehq.com