You have two weeks to submit a talk to Postgres Open (Chicago, USA, September 14-16). If you care about MediaWiki running on Postgres, this would be a great opportunity to activate the Postgres community and get more of them using and contributing.
http://postgresopen.org/2011/speaker/
Talk proposals will be accepted until June 27, 2011 at 11:59pm (Chicago time, I assume).
They're looking for workshops, case studies, HOWTOs, product presentations, and innovation and scaling reports. More details: http://postgresopen.org/2011/blog/2011/06/03/cfp-2011/
I'll happily help anyone who wants help preparing a proposal.
Sumana Harihareswara Volunteer Development Coordinator Wikimedia Foundation