I think that you did a great job addressing a need in your area of expertise and I like that you allow peers to assist each other since that is one of the best ways to master a skill. I'm not sure what IC3 or D2L are, but I think that certification for the teachers is a great motivator and the opportunity to complete the lessons at home is a good way to differentiate.
I hate to admit it, but I had to google "Sharepoint" because I wasn't sure what it was. I'm assuming that the target audience you are working with is more familiar with this type of program than I am. :)