This year, consider speaking at Open Source Bridge http://opensourcebridge.org/ in Portland, Oregon, USA, June 18-21. OSB is tech talks & hack sessions with hands-on technologists we want, for Foundation staff recruiting and for volunteer recruiting and collaboration. Good talks, clueful people, great food. :-)
If you submit a talk and it gets accepted, you can request subsidy from Wikimedia Foundation https://meta.wikimedia.org/wiki/Participation:Support for your travel and hotel.
Call for talks: http://opensourcebridge.org/blog/2013/03/were-extending-our-call-for-proposals/ They especially encourage inexperienced speakers.
We already have proposals from or featuring Brandon Harris, Andre Klapper, Trevor & Roan, me, Priyanka Nag, Quim Gil, Alolita Sharma, and Noopur Raval.
Please forward.