I find conferences through others in the same industry: http://plancast.com http://plancast.com http://lanyrd.com http://lanyrd.com Mostly it is just through th

I find conferences through others in the same industry: http://plancast.com http://plancast.com http://lanyrd.com http://lanyrd.com Mostly it is just through the grapevine http://twitter.com http://twitter.com and http://meetup.com http://meetup.com, knowing lots of people within the industry helps.