People here are likely aware that OMIM® moved away from NCBI a while back, but you may not be aware of some of the features that they were able to build out on the new platform. If you haven't looked around at their site and their pages for a while, check 'em out.

Through the end of March 2013, the tutorial, slides, and exercises for our updated OMIM tutorial are freely available because they are sponsored by the OMIM team.

Access the learning resources here: http://openhelix.com/omim

Here's a blog post I did about some of the backstory of OMIM as well: http://blog.openhelix.com/?p=14857