first 30sec will need to promote the site eg.
-how effective is the elearning site
-what does the elearning site provide eg. social networking feature, auto marking system etc, send weekly report etc...
-save the tree by using less paper
-save money, save time
-can use anywhere as long as there is internet access
90sec for explanation for the site. You are required to describe all features in the site like what you have mentioned earlier. The various features can b highlighted and describe one by one e-learning, e-reports, Games, Resource Center and at last the membership plans. Also a "how to" register/create an account part we can keep in the video. It shud be colorful, fun, childish so that children can relate with it and find interest while viewing the video and as well as informative to their parents.