There are some indexes for for the book, 'Introduction to Algorithms' by Tom Cormen, Charles Leiserson, and Ron Rivest, all members of Theory of Computation Group, Laboratory for Computer Science, MIT.

Databases available for search with WAIS are

list of bug fixe
Algorithms-exercise :
list of exercises
Algorithms-suggest :
list of suggestions submitted by readers
We also have an e-mail service for bug-report, suggestions, etc. For more information, please send mail to with a single word 'help' on subject line.