That said,
Why second edition intro to algs? Why not third? also, considering that intro to algs is one of the "Books Programmers Claim to Have Read" http://www.billthelizard.com/2008/12/books-programmers-dont-... , so those planning to read it, note that it is best learned in a classroom setting where you are forced to work through the problems.
Finally, interesting that he does amazon reference links to all these books, hopefully profit opportunities didn't taint the items on his list!