Google, Microsoft crowd-source maintenance of product documentation

Some divisions within companies like Google, Microsoft, Mozilla have been offering support for their products over Stack Overflow. Their employees monitor & answer questions with tags pertaining to their division.

I noticed that articles in the Windows Azure documentation can now be edited within Github. This is an interesting use of Github.

The videos of Google Webmaster Help YouTube channel have subtitles created by volunteers on Amara.org

Also see: Finding social media stressful? Outsource their maintenance