Current PSD (Web/Data Status). PSD has undergone major URL restructuring so that all URLs start with http://www.esrl.noaa.gov/psd/ (More Info).
OPeNDAP Data access is now open without IP restrictions.
This page has moved to
http://www.esrl.noaa.gov/cgi-bin/data/gridded/getpage.pl. Please update your bookmarks accordingly.