The K12 Online conference is coming soon, in October!
If you haven't participated before, K12 Online is a conference that takes place entirely online, over a two week period in October.
For more information, check out: http://k12onlineconference.org/?p=84
And there are some sample video presentations here as well: http://k12onlineconference.org/?p=104
I'll be posting more about it on my blog as well (I'm on the publicity committee!)