What's an edCamp you ask? edCamp is a 1-day "unconference" in that it's a chance for those in education (teachers, administrators, etc) to get together, network, share and learn. The day is planned during the kick off at the beginning of the day where any participant can propose a session idea/topic to the Idea Board. All sessions are laid out and then everyone attends sessions they want during the rest of the day.
You should watch this 2-minute video to hear from those that have attended an edCamp before. You can also check out other edCamps that have been and are taking place around the world at the edCamp Wiki.
The fun folks over at Flocabulary.com put together an awesome rap about edcamps.
EdCamp El Paso