Google BookSearch
http://books.google.com/
Searches the full text of books scanned from publisher and library partners. Full text is mostly only available for older books (pre-1922), but TOCs are usually available for all books.
HOLLIS
http://hollis.harvard.edu/
Harvard's online catalog. MIT students are eligible for borrowing privileges at Harvard College Libraries.
If I'm not available to answer your question, please feel free to consult with one of my colleagues:
Ask Us
Ask a question, make an appointment, give feedback, or visit us.