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A list of niche specific web directories and related websites for submission.
Add your site - $10 per month
llek.de
Category: Web Directories
physics.org
dctech.com
rain.org
physnet.uni-oldenburg.de
hiramp.tripod.com
physcon.ru
radwaste.org
web.mit.edu
het.brown.edu
aip.org
physics-directory.com