Siouan Texts  
   This site has the largest collection of Lakota language texts on the internet. Great work by a committed linguist.
   http://www.inext.cz/siouan/

Siouan Language Family Linguistic Listserv Archive  
   The best academic resource for Siouan language related issues, including news related to Proto-languages, borrowings, and other descriptive topics.
   http://listserv.linguistlist.org/archives/siouan.html

Lakota and Dakota Language Resources  
   Most comprehensive list of Lakota language-related resources and materials.
   http://puffin.creighton.edu/lakota/index_language.html

Lakota Language Consortium  
   A nonprofit organization working to revitalize the Lakota language. Site provides current Lakota language usage statistics as well as curriculum materials for elementary school age learners.
   http://www.lakhota.org/

Yahoo! Groups : lakhotaiyapi  
   This discussion group is helpful for learning to read and write Lakota. The site has a good number of knowledgeable members who can assist with specific questions.
   http://groups.yahoo.com/group/lakhotaiyapi/

The Rosetta Project: Lakota language archive  
   A collection of Lakota texts, audio files, and related linguistic materials.
   http://www.rosettaproject.org:8080/live/search/detailedlanguagerecord?ethnocode=LKT