...
2) People need to be encouraged to use HTRC as the source for the documents they need. Try to find a way to communicate with undergraduates directly, and let undergraduates know about HTRC and what it can do. Often, undergraduates will run with the resource, and convince faculty to let them use it for class projects, etc. Faculty members tend to be more reticent about using new resources than undergraduates are.
3) The crux of the matter is to come up with tutorials that people can play with whenever they have a few minutes free to play with it, and still make it into a useful learning experience.