Chiang Mai Rock Climbing Adventures
Tham Lumphini Suan Hin (Saraburi)
Tham Nam Nao (Phetchabun)
Tham Nam Lei (Chaiyaphum)
Tham Khao Tha Morat (Phetchabun)
Doi Chiang Dao 1 (Chiang Mai)
Doi Chiang Dao 2 (Chiang Mai)
Tham Pha Mon (Mae Hong Son)
Tham Pi Man (coffin caves, Mae Hong Son)
The blog of the Equipe Spéléo de Bruxelles has reports on Thailand expeditions
The blog of the Franz Lindenmayr's website which has a lot of information and photos.
Alice Latinne's blog on searching for cave rats.