Good Amateur Radio Sites:
The Texas VHF Homepage
http://www.texasvhf.org/
http://www.qrz.com/
http://www.arrl.org/
http://dxworld.com/144prop.html
http://dxworld.com/50prop.html
http://www.dxsummit.fi/
The granddaddy of all 2 meter propagation pages:
http://www.mountainlake.k12.mn.us/ham/aprs/path.cgi?map=na
Where is that grid square?
http://www4.plala.or.jp/nomrax/GL/index.html
Upper Lake Livingston Wireless Association:
(great bunch of people)
http://www.ullwa.com/
Grid square map click here (pdf file)