http://www.epa.gov/newsroom/pictures.htm

http://www.eurekalert.org/doe/page.php?view=imagegallery

http://www.eere.energy.gov/news/photographs.cfm

 http://www.doedigitalarchive.doe.gov/

 http://dodimagery.afis.osd.mil/

 http://www.defenselink.mil/multimedia/

http://vulcan.wr.usgs.gov/Photo/framework.html

http://www.ngdc.noaa.gov/mgg/mggd.html

http://rs6.loc.gov/ammem/ammemhome.html

http://www.archives.gov/historical-docs/

 http://www.af.mil/photos/

 http://www.ars.usda.gov/is/graphics/photos/

  http://www.ender-design.com/rg/

 http://www.iconbazaar.com/

http://www.nasa.gov/gallery/photo/index.html

http://www.skdesigns.com/internet/music/img/index.htm

 http://www.clipartoday.com/

www.backyardgardener.com/pump1.html

http://www.thekidzpage.com/freekidsclipart/index.htm 

http://classroomclipart.com/