Websites
The Collegiate Way:  Residential Colleges and Higher Education Reform
A Collegiate Way of Living (order page)
Bob O'Hara's website, www.collegiateway.org, is the most comprehensive resource on residential colleges.  Highlights include:  answers to "frequently stated objections," links to residential colleges around the world, and loads of ideas for implementation.
Books
Mark Ryan's book is the best available on residential colleges.  Available only through Yale Bookstore.
Links
The Abandoned Generation: Rethinking Higher Education (order page)
William Willimon and Thomas Naylor offer the residential college model as a solution to the poverty of campus culture in the US today.
The Boyer Center
Founded by Messiah College to further the vision of alumnus Ernest L. Boyer, Sr., the center promotes the building of quality educational community in school and society through programs which cultivate character, promote coherence, foster collaboration, and encourage civic engagement.