currently:

• catalan
  • http://www.parla.cat/
  • http://www.verbs.cat/es/conjugacion.html
  • http://www.hyperdic.net/ca/
  • http://www.verbix.com/languages/catalan.shtml
  • http://webs.racocatala.cat/llengua/#inici
• german
  • http://www.deutsch-lernen.com/learn-german-online/
• portuguese
• lithuanian (lietuvių kalba)
  • «Chiunque voglia sentire come parlavano gli indoeuropei deve andare ad ascoltare un contadino lituano» (Antoine Meillet)
  • http://indoeuro.bizland.com/project/grammar/grammar11.html
  • http://www.oneness.vu.lt/languageschool
  • http://en.wikipedia.org/wiki/Lithuanian_grammar
  • http://www.utexas.edu/cola/centers/lrc/eieol/litol-0-X.html
  • http://lithuanian.libsyn.com/
  • http://www.italietuva.com/dictionary/italiano-lituano/
  • Lithuanian tales
  • Folklore, traditions, religion...
  • http://www.lkz.lt/en/dze.htm

wishlist:

• croatian (hrvatski jezik)
  • http://learncroatianonline.com/
  • http://en.wikibooks.org/wiki/Croatian
• standard serbian
  • http://en.wikibooks.org/wiki/Serbian/Introduction
  • http://www.learnserbianblog.com/
  • grammatica di inizio XX sec @ BNN
• french