Available at many libraries, bookstores, Amazon, etc.
Rugg's Recommendations on the Colleges by Frederick E. Ruggs. Updated annually. Recommends undergraduate programs in various majors. Available directly from the publisher.
The College Finder: Choosing the School that's Right for You by Steve Antonoff. Provides a wide range of categories of colleges.
Colleges that Change Lives, published by Penguin Books. Some colleges that may not be household names, but which foster character development and service. Participating colleges also conduct their own college fairs across the country each year.
Fiske Guide to Colleges by Edward Fiske. Updated annually. One of the most comprehensive and best-known college reference guides, it includes candid descriptions of some 300 universities. Read excerpts before you buy.
Harvard Schmarvard by Jay Mathews. Contains good suggestions on lowering the stress of the college search, choosing a college based on a good match rather than prestige, and other sane, helpful admission advice.
Colleges Unranked by Lloyd Thacker. College admission deans speak out against the obsession with college rankings.