IECA is now taking regular and associate memberships for 2012. Join now and your membership will be effective immediately (meaning you get an early start on the benefits).
And if you intended to take out a founding membership, but were just too busy, it's not too late. You can still do that in conjunction with a 2012 membership (and you'll get the discount).
All is explained here: http://environmentalcomm.org/join-IECA
To those of you going to NCA, have a good conference!