Welcome to the Meta-Wiki, a wiki meant to work alongside the main Wikipedias and other projects of the Wikimedia Foundation. Its mailing list companion is foundation-l. Meta is multilingual and currently has 142,619 content pages. For more information on this wiki, see About Meta.
Helping contributing and collaborating (i.e., what makes it easy, what makes it hard, how to do it well, why you have to, what conflicts typically arise, fixing them)
Discussing and formulating project-wide (i.e. not language-specific) policies.
The Wikimedia Foundation is the over-arching nonprofit foundation that owns the Wikimedia servers along with the domain names and trademarks of all Wikimedia projects and MediaWiki.
Wikimedia: Overview of the Foundation (history, organisation, finances, activities)