"At only 21, Aaron Swartz is attempting to turn the library world upside down. He is taking on the subscription-based WorldCat, the largest bibliographic database on the planet, by building a free online book catalog that anyone can update.
Many academic librarians are wary of Mr. Swartz's project because it will allow nonlibrarians, who may be prone to errors, to catalog books."
Read more at http://chronicle.com/weekly/v54/i24/24a01101.htm
Open Library: http://www.openlibrary.org/
(Chronicle of Higher Education)