Laboratory for applications in Remote Sensing (LARSE) -- OSU, USFS PNW Research Station collaborative RS Group
http://www.fsl.orst.edu/larse/
University of Maryland -- Largest inventory of free Landsat data
http://glcf.umiacs.umd.edu/index.shtml
Forest Service imagery, AVHRR fire survey
http://www.fs.fed.us/r4/rsgis_fire/satellite_july2001.html
PNW Regional Ecosystem Office
http://www.reo.gov/gis/gisdata.htm
Oregon Geospatial Data Clearinghouse
http://www.gis.state.or.us/data/alphalist.html
National Atlas
GIS data depot
Map mart
Free GIS and RS data
http://www.lib.odu.edu/resources/gis/datasetslist.htm
USGS Eros Data Center
Earth explorer
http://edcsns17.cr.usgs.gov/EarthExplorer/
Links for DEMs
http://members.fortunecity.com/eco4/giseco/id8.html
FAQ on vegetation indices in remote sensing
http://www.msue.msu.edu/ssm/references/rsvegfaq.htm#q3
Free Image Viewer and great information on various data formats
Full text searches of remote sensing journals
http://www.yale.edu/ceo/Documentation/rs_journal.html
Remote sensing core curriculum
http://www.research.umbc.edu/~tbenja1/umbc7/santabar/rscc.html