I'm usually a speaker at LIMACON, but this year I took a break! In fact, I spoke last year after an imposed 2 year break. Now LIMACON is imposing a 3 year period before you can speak again. So, I won't speak at LIMACON again until 2016 somewhere near PI Day! BTW, I also spoke for T^3 at Molloy College last November. That conference is held only every 3 years, so I suppose that 2016 will a busy year for me.
As you can tell, I went to lots of presentations about flipping the classroom. The motto seems to be: "You don't have to be the Sage on Stage anymore! Be the facilitator and let the students do their work!" ... no pun intended re "sage."
Finally, this blog post was originally a forum post on https://apcommunity.collegeboard.org/ in the AP Calculus Teachers' group.