General NIH Info
http://www.nih.gov

The main NIH web site NIH Jumpstart
http://jumpstart.nih.gov
A quick way to find answers to your questions about the NIH

NIH Enterprise Directory - NED
http://ned.nih.gov/search/search.aspx  

NIH Online Orientation
http://orientation.nih.gov

Guidelines for the Conduct of Research
http://www.nih.gov/news/irnews/guidelines.htm

A Guide to Training and Mentoring in the Intramural Research
Program at NIH
http://www1.od.nih.gov/oir/sourcebook/ethic-conduct/TrainingMentoringGuide_7.3.02.pdf

NIH Videocasts
http://videocast.nih.gov
Rebroadcasts of NIH lectures and conferences

NIH Intramural Database (Institute and Center Annual Reports)
http://intramural.nih.gov/search
Annual reports from all the Institutes and Centers, which are searchable so that you can find specific investigators working in particular areas of interest

NIH Housing List
http://www.recgov.org/housing/Rent.html

NIH Blood Bank
http://www.cc.nih.gov/dtm/donor_patient/dtm_donor_info.htm