AltDevConf
altdevconf.org
It's a free, online, volunteer-run game development conference. And it's going on right now!
Some notable speakers are (1) Miguel de Icaza, founder of Mono,(2) Erwin Coumans, creator of the open-source Bullet physics engine, and (3) Wolfgang Engel, graphics guru and founder Confetti Special Effects. There are tracks in programming, education, and design and production spanning today and tomorrow.
I know this sounds like some sort of advertisement spot, but it's not. I am in no way affiliated with the conference. I just want to spread the word so people don't miss out!