If you are interested in exploring the topics being discussed at some of the big "educational technology" gatherings, or know teachers who are, here are links to the archives of two of the larger Edtech conferences held during the past year. There are tons of good presenter resources to comb through. (Handouts, papers, Powerpoints, links, etc.)
NECC2009 Handouts and Papers
TCEA2010 Presenter Handouts