ISTE (International Society for Technology in Education) has created standards (NETS) for technology in education:
ISTE’s Online Learning Feed is filled with Fantastic Ideas!
Promethean Planet has quite a few resources for using with your ActivBoard
David Warlick is my all-time favorite Educational Technology person to follow, he has the following resources:
LandMark Project- Resources for different disciplines
CoolCat Teacher Blog is Filled with New Ideas for Incorporating Technology into the Classroom