The unfortunate reality is I just cannot attend conferences as I could pre-children. Husband works unthinkable hours, no family close by. Hard to find childcare for evening, and day conferences usually conflict with school hours. What I would like to find are lists of web-conferences or rebroadcasts or something. That's where podcasts really come into their own with me. As for organising or speaking, well, when you don't have time to attend, can't really consider organising or speaking.
As I try to move closer to becoming a school librarian, many of these tools look like they might be of use, especially Prezi. Again, I'll note it and come back when I need it specifically.