http://www.ultranet.com/~asmolar/atari8/
http://www.infos.cz/raster/atari/
http://members.tripod.com/~ahmets2/index.htm
closertohome.dyn.ml.org

ftp://ftp.spudster.org/pub/Atari/CTH/Atari_8bit/More_Atari8bit/EMULATORS/ROMS/16KROMS.ZIP

ftp.spudster.org/pub/Atari/