Caving clubs and tourism organisations:
Sokolniki-RUDN (Moscow)
Perovo (Moscow)
NoMoS (Moscow)
Cavex (Moscow)
Espeleo club de Gracia (Barcelona)
Tourist club of KTU "Ąžuolas"
Travellers foundation "Baltų žygiai"
Tourist club of VGTU
Lithuanian tourists informational site
Interclub "Spelaion" (Kaunas, Moscow)
Speleo contest "Speleopagonija"
http://speleopagonija.lt/
Worldwide caving news portal
WCN
The history of speleology, articles:
http://ausis.gf.vu.lt/mg/nr/98/7/07spel.html
Lithuanian undergrounds and caves:
http://www.birzai.lt/index.php?200517235
http://www.lgt.lt
http://tunelis.ginklai.net
Discussion forums:
http://ginklai.net/tunelis/talk/
http://www.sokolniki-rudn.org/forum/
http://www.speleoukraine.net/forum/index.php
Other useful information:
http://www.rgo-speleo.ru/caves.htm
http://www.speleogenesis.info/
http://www.network.speleogenesis.info/index.php
http://snowcave.ru/speleoclub/links.htm
http://archive.travel.ru/abkhazia/
Bats:
http://www.siksnosparniai.apicentras.lt/