JIMBOK: Jim Owens' PMP Exam Tips & Columns

Download Tips on each PMBOK chapter here forums.pmhub.net

Few useful downloads here :)

http://www.esnips.com/web/adeelkl-PMP/
or browse http://www.esnips.com and search for PMP.
Get all you want :).

Project Management Glossary

Project Management Glossary

A comparative glossary designed to show how many common terms mean different things to different people, thereby leaving you free to create your own distinct version for your particular project.

Rita Mulcahy's web site

Rita Mulcahy, world-renowned PM expert and best-selling author, has been teaching her innovative techniques for passing the PMP® exam on the first try since 1991. And most recently, she has used her thousands of hours of experience to develop exam training for the CAPM® certification as well. Now, project managers around the globe can study for either the PMP® exam or the CAPM® exam online—24 hours a day, 7 days a week.

You can also find some free stuff here:
http://www.rmcproject.com/