A growing number of mathematical books are freely accessible on the Internet. Many are significant historical works no longer protected by copyright, but some more recent titles are also available.
The University of Michigan and Cornell Univeristy both offer access to their digital collections of significant historical mathematical material:
AMS Books Online provides access to a small collection of books published by the American Mathematical Society, individual titles on other websites, and larger collections of scholarly mathematics books on the Internet.
In addition to books available for free online, UNC has purchased many e-book subscriptions. To search these e-books, use the Advanced Search page. In the box for Optional Search Limits, select "E-Books" from the Format drop-down menu.
New books that have yet to be added to the catalog may be found directly at their source. You can browse titles from SpringerLink, MATHnetBASE, and STATSnetBASE
