Below is a list of websites for information on Lamp Recycling that John Gates mentions in his seminars from the floor @ NAB.
http://www.sylvania.com/recycle
http://www.sylvania.com/AboutUs/EnergyAndEnvironment/LampRecycling/
http://www.lamprecycle.org/
http://www.nema.org/lamprecycle/recyclers.html
http://www.aircycle.com/?ilbcode=576
More Information About Hg (Mercury)
http://education.jlab.org/itselemental/ele080.html