http://www.uscis.gov/
U.S.C.I.S. web site

https://egov.uscis.gov/cris/jsps/index.jsp
Immigration case status online

http://travel.state.gov/
Department of State; Consular Affairs

http://travel.state.gov/visa/temp/wait/tempvisitors_wait.php
Visa interview wait times at Consuls

http://www.state.gov/r/pa/prs/ps/2005/42212.htm
For information on validity of Visa Mantis clearances

http://travel.state.gov/visa/temp/info/info_1296.html
J visa waiver information

http://travel.state.gov/visa/frvi/bulletin/bulletin_1360.html
Visa Bulletin