http://www.k0bg.com/
Alan has done a good job of compiling a lot of good information here , ENJOY !
http://www.myrv.us/electric/
Another informative site for RV Electrical.
http://www.swssec.com/grounding.html
Another good site.
http://www.v-blox.com/surge_protection
A bit pricey, but they do work , have used these on several high risk sites.