- Note: These are regular expressions; edit with care!
Known Wikipedia mirrors
\.answers\.com/ \.search\.com/ \.referenceencyclopedia\.com/ \.reference\.com/ \.wikipedia\.com/ \.wikipedia\.org/ \.mirrorpedia\.com/ \.brainyencyclopedia\.com/ \.babylon\.com/ \.bibleocean\.com/ \.digplanet\.com/ \.?medlibrary\.org/ \.allexperts\.com/ \.reference\.com/ \.feedbus\.com/ \.?pandapedia\.com/wiki/ \.?tubious\.com/ www\.pontefract-yfc\.co\.uk/wiki\.php www\.territorioscuola\.com/wiki/ \.?otovaganza\.com/minicooper-old\.php \.?net-encyclo\.com/en/ \.?prescriptiondrug-info\.com/ \.?wikivotr\.com/ \.?jgames\.co\.uk/title/ \.?allrss\.com/wikipedia\.php\? india\.smashits\.com/wikipedia/ \.citizendia\.org/ \.?s2008\.info/ \.?moralnafirma\.pl/ \.?boopsie\.com/ www\.thepaleochorasite\.com/wiki/ \.fotopedia\.com/ \.?reachinformation\.com/define/ yomi\.mobi/egate/ pediaview\.com/ wikipedia\.7val\.de www\.wikiwak\.com/ \.fiveafrica\.com/ \.freebase\.com/ \.juggle\.com/ \.barcodinglife\.com/ danpritchard\.com/wiki/ \.aadet\.com www\.absoluteastronomy\.com/topics/ en\.goldenmap\.com/ \.maps\.thefullwiki\.org/ \.www\.askbiography\.com/ \.tutorgig\.info/ed/ \.wordiq\.com \.mundoandino\.com/ english\.turkcebilgi\.com \.tutorgigpedia\.com uk\.ask\.com\/wiki wpedia\.goo\.ne\.jp\/enwiki\/ \.amazon\.com\/wiki\/ \.scribd\.com\/doc\/55288486\/Diagnostic-and-Statistical-Manual-of-Mental-Disorders www\.mashpedia\.com hewgill\.com\/~greg\/wikiblame\/ encycl\.opentopia\.com\/term\/ \.thefullwiki\.org wikipedia-update\.com \.airports-worldwide\.com wikipedia\.sfstate\.us lyricsfreak\.com\/.+(\/|biography\.html)$ wiki\.verkata\.com dbpedia\.org\/(resource|page)\/ readtiger\.com \.cyclopaedia.net/
\en.scio.pw/
Known U.S. Government sites
\.gov/ \.mil/ countrystudies\.us/
Sites with CC-BY-SA-compatible contents
\.citizendium\.org/ \.?bhamwiki\.com/ \.?gardenology.org/ \.wikimedia\.org/ \.wikisource\.org/ \.wiktionary\.org/ \.wikia.com/ \.?planetmath\.org/ www\.libraryireland\.com/biography/ \.?appropedia.org/ www\.animalbase\.uni-goettingen\.de/zooweb/servlet/AnimalBase/? www\.baseball-reference\.com/bullpen/ mnopedia\.org (www\.)?newadvent\.org\/cathen\/ en\.wikipilipinas\.org mspong\.org\/picturesque\/ judgepedia\.org\/ sourcewatch\.org\/ sgwiki\.com
Sites with explicit permission
www\.interface1\.net/ \.govtrack\.us/ www\.patents\.com/us