Once this thread runs a little more and a few other sites are linked I'll include the links from this thread in the "Free Plans... " sticky resource thread under a heading for "Commercial plans for purchase" heading on the thread and change the title a little to reflect this shift.

And it's a great idea to run with this.

I'll add a few from the US Magazines;

Radio Controlled Modeler magazine plans
www.rcmplans.com
Flying Models Magazine plans
http://carstensbookstore.com/caflmopldi.html
AMA Model Aviation plans and the John Pond old timers plans
http://www.modelaircraft.org/plans/plans.aspx