Third issue of the MediaWiki community metrics monthly report!
http://www.mediawiki.org/wiki/Community_metrics/December_2012
We have added a section with social media stats. Hopefully next month we will show mediawiki.org data to reflect the documentation work.
There is a big increase in the total amount of lines of code and active contributors. The addition of Kiwix and MediaWiki Editor Engagement Experiments has something to do with this. Probably Ohloh crawled more of the hundreds of repositories we have on file. But underneath this there is the main factor that the MediaWiki community is growing year-to-year!
As a contrast, MediaWiki core got the lowest amount of commits since June 2010 - probably related with the post 1.20.* releases + holidays?