With Ohloh, you can analyze FOSS projects and quickly generate reports based on license, programming language, size of development community, and so on. You can select projects from the directory and then easily compare them, side-by-side. For example, this link http://www.ohloh.net/p/compare?project_0=Tiki+Wiki+CMS+Groupware&project_1=Apache+HTTP+Server&project_2=jQuery displays the development history and code analysis of Tiki, Apache HTTP Server, and jQuery.
Ohloh is also about community building. For each developer on a project, you can review their participation to determine if they are active participants in the community, their background and expertise, and how well respected they are by their peers.
But one of the greatest things you can do with Ohloh is to support your favorite FOSS projects... like Tiki! By visiting the Tiki page (http://www.ohloh.net/p/tikiwiki/) and clicking I Use This, you can add yourself to the Tiki Community on Ohloh. If you include your location, you'll be added to the Tiki world map: http://www.ohloh.net/p/tikiwiki/map.Joining Ohloh and adding Tiki is a quick and easy way to show your support for Tiki Wiki CMS Groupware. And be sure join Tiki on the other networks (such as Facebook and LinkedIn). See http://tiki.org/Networks for details.
The Tiki Community extends its appreciation to Black Duck Software for their ongoing work with Ohloh.net -- it is an awesome resource! Be sure to read the Ohloh blog to learn more.