Driving tips
http://rv-roadtrips.thefuntimesguide.com/2010/03/rv_driving.php has a lot of info and many links to specific skills.
http://www.dmv.org/how-to-guides/rv-handling.php has some good, basic RV driving info.
http://www.rv-adventuring.com/driving-an-rv.html is an easy read with some good information.
http://www.motorhomeroadtrip.com/united-states/us-rv-info/rv-handling-tips/ has a lot of good tips.
http://www.rversonline.org/RVOADrivingSchool.html has more tips taken during a driving course.
http://www.betterrving.com/Article/RV_Tips/RV_Driving_Course_Adjusting_Mirrors has seven videos each about one aspect of driving.
http://loveyourrv.com/fifth-wheel-travel-trailer-towing-tips/ has a lot of towing tips and info.

Schools and training
http://www.rvbasictraining.com/ is a driving school. For $450 + travel they come to us.
http://www.rvschool.com/rvschool/Home.html offers lessons for one or both of us at the same time.