I have written a MyLibrary tutorial describing how to take advantage
of version 3.0's object-oriented modules:

   By the end of the tutorial the reader should be able to:
   create sets of facets, create sets of terms, create sets of
   librarians, create sets of location types, create sets of
   resources, classify librarians and resources with terms,
   work with sets of resources assoicated with particular sets
   of terms, output the resources' titles, descriptions and
   locations, create a freetext index of MyLibrary content,
   harvest OAI repositories and cache the content in a
   MyLibrary database.

   http://dewey.library.nd.edu/morgan/tutorial.txt

--
Eric Lease Morgan
University Libraries of Notre Dame