This has to be a duplicate.
I'd recommend the MIT open courseware site here. There's algorithms courses in the "Electrical Engineering and Computer Science" section some way down the page.
6.006 - Introduction to Algorithms
6.046J - Introduction to Algorithms (SMA 5503)
I recommend the latter. The materials are on the site. The videos are probably best accessed from YouTube here - search for "mit algorithms". The textbook is well respected. Third edition is just out, second edition matches the course. The first edition was also included as part of Dr Dobbs Algorithms and Data Structures CD ROM.
Niklaus Wirth has an Algorithms and Data Structures book available for download from his personal site. I have the Modula 2 print version, and while it's not a a substitute for Cormen (or aho hopcroft ullman, etc) it's a nice book to have.
