Here are some links for those interested in Latvian folklore and folklore and traditions in general.
NB!The sequence in this list shall not be taken as an indicator of importance or usability!

1. A dedicated Latvian folklore server managed by Ansis Ataols Berzins. Includes a comprehensive list of all Latvian folklore groups, with sound samples.
2. The website of Krisjanis Barons museum. See the apartment where the famous editor spent the last four years of his life, look for folklore related events to participate in.
3. The contents of Dainu skapis. Still only in Latvian. Contains a search engine to search the texts of the published edition of "Latvju Dainas", providing an opportunity to see the original manuscript slips as well. (Hosted by a private companyLURSOFT). In case you want to give it a try, but have no idea what to enter in the search window, start with dziesma ('song'). But you can use any web translation service to help you with the search and the analysis of the results.
4. Historical documents dealing with issues of (early) Latvian folkloristics, a web library which is one of the projects implemented by AILAB - Artificial Intelligence Lab. Will require good command of Latvian to use, though.
   
5. An easy way to learn some Latvian folk tune - listen to it in MIDI format. Now includes also mp3 of the originals (where available) and the song text transcripts. (Connected to the website"Mūzika Latvijā")
   
6. General information on Latvia and its culture on the site of the Latvian Institute (Latvijas institūts).
7. Encyclopaedia of Mythology, also including some Latvian material.
8. Encyclopaedia of Folk-Tales (German and English).
9. The Viennese Phonogrammarchiv - one of the most important sound archives in Europe.
   
10. The virtual collection of the British museum Sound archive "Traditional music in England" (Meaning not exclusively the English traditional music, but rather everything recorded in England!).
11. Other web-accessible resources of AILAB.
12. The web site of Estonian colleagues (Estonian and English).
13. The web site of the Institute of Lituanian literature and folklore.
14. A web resource of Lithuanian language, history, ethnology, folklore and archaeology material Arodai (Lituanian and English).
    
15. The internet-journal published by Estonian colleagues Folklore (Estonian and English).
16. Latvian State Audiovisual Archive.
17. "Baltic Heritage Network" - an NGO dealing with the Baltic exile archives.
18. Baltic Audiovisual Archival Council - a site providing you with an opportunity to find out what these archives are and what they are doing.