After looking at some of the sites passed on in a question I posted ,I came across this site
http://www.aopa.org/asf/online_courses/from the site :
AOPA Air Safety Foundation interactive courses are free and easy to use. Most courses take about an hour to complete, but you control the pace. If you start a course and prefer to finish at another time, your progress is automatically saved for your convenience.
worth the time and effort I have found a lot of the information very useful
