Stamp Catalogue by Evert Klaseboer- Images by Country (some images not
there?)
http://perso.club-internet.fr/klaseboe/catalog.htm
Images of some Polish stamps
http://www.sandafayre.com/gallery/country_307_1.htm
Joseph Luft's Philatelic Resources on the Web
http://www.execpc.com/~joeluft/resource.html
Information About Local Issues (in general)
http://www.stampshows.com/local-post.html
Overprint Dictionary (in general)
http://www.askphil.org/b28.htm
Stamp Identifier (in general)
http://iswsc.homepage.com/iswsc_identil.html
Weird stamps page- Helpful site to identify unusual stamps of the World
http://www.raster.it/stefano/a/hyciywsaatsthopo.htm
Central Lithuanian Stamps-In Lithuanian
http://www-public.osf.lt/~ronas/zem_0.htm
Polish Stamp Collecting
http://www.polonia.net/katalog/rozrywka/filatelistyka.html
Silesia Collectors
http://www.kk.silesianet.pl/
Polska Poczta Balonowa a nice collection of Post Cards
http://www.man.poznan.pl/~stanecki/balony/poczta/poczta.htm
Early Polish Stamps
http://www.eis.or.jp/muse/yasuka/01/stamp/poland/poland.html
Jennifer's Polish Stamp Page
http://www.geocities.com/Heartland/Plains/4049/stamps/poland/poland.html
Collector from Poland (off line?)
http://www.free.com.pl/piotrna/
User's Stamps (many countries)
http://www.postage.dk
Alan Anderson's Internet Stamp Store (many countries)
http://www.halcyon.com/alana/poland.html
Old Polish (and other countries) Covers and Stamps for sale (with images)
http://www.sastamps.se/WEN7.HTM
Dealer of Polish items
http://www.jbarefoot.co.uk/stamps/pol1.htm
Dealer in Russian Areas
http://www.trevorpateman.co.uk/
Cherystone Auctions- First quality worldwide stamps, but expensive.
USA.
http://www.cherrystoneauctions.com/auction.htm
Collection of dealers stamps of all countries.
http://www.zillionsofstamps.com/