One of the major online audience measurement companies, comScore, Inc., has generously donated access to its Media Metrix and World Metrix data sets to the Foundation. comScore has an opt-in panel of two million internet users around the globe and uses a range of statistical techniques to create an internally consistent portrait of the global internet audience.
One major area of work to do is reshaping the way comScore tracks our sites. It currently includes URLs that aren’t associated with the Foundation, and also is organized in a fairly haphazard way. This will take a few months to fix, but we should be able to drive much more useful info once the work is done.
I’ve started a page on meta.wikimedia.org to summarize and share the comScore data.