WebKit is an engine software used by several web browsers to render web pages. This is currently running on Chrome or Safari browsers as an example. This analysis is focused on the review process of the project using as basic pieces of information companies. Thus, it is possible to analyze contributions from several points of view such as evolution of contributions per company (left chart), overall contribution per company (chart in the middle) or population of developers per company (right chart). More information can be found in the series of webkit posts or their reports.
OpenStack is one of the best known open cloud projects with a solid base of companies. This analysis focused on how much are contributing those companies and a comparison between Essex (left chart) and Folsom (right chart) releases. More information at the OpenStack blog post and OpenStack report (Essex) (Folsom).
The Wikimedia foundation is a non-profit organization. Under its umbrella there are several project, but the most famous initiative is the Wikipedia. This analysis was focused on the Wikimedia project which is a free/open source wiki. Information from the versioning system, mailing lists and the bug tracking system was retrieved. More information at the Wikimedia blog post and Wikimedia report
Stay tuned for further reports on FLOSS (free, libre, open source software) projects & communities.