FETC is a great educational technology conference held in Florida. They also run a virtual conference that is very good. The next virtual conference is October 22, 2009, from 10am to 6pm.
The virtual conference is easy to navigate and contains video presentations, discussion forums, vendor sites, and more. It is well worth your time. Everything is also archived for future reference in case you can't do all of it in real time.
There are even drawings for freebies from the vendors.
You can register for it here and get more information. I highly recommend it to anyone interested in learning more about educational technology and how it can improve teaching and learning.