The Yoga Aphorisms of Patanjali - An interpretation by W. Q. Judge, originally published in 1889, regarding the aphorisms on concentration and the essential nature of isolation. Includes the text of the aphorisms. www.theosociety.org/pasadena/patanjal/patan-hp.htm
The Yoga Sutras - A series of seven articles by Raghavan Iyer, discussing Patanjali's Sutras. www.yoga.com/roots/yoga/info/sutras/YogaSutrasI.htm
The Yoga Sutras of Patanjali - Introduction, plus a translation of the Union Threads by Sanderson Beck. www.yoga.com/roots/yoga/info/Sutras/SutrasBecksEnglishVersion.html
The Yoga Sutras of Patanjali - The Threads of Union translation by Bongiovanni. With concordances and word frequency lists. www.intratext.com/X/ENG0210.htm
Yama and Niyamas - A description of the five Yamas and five Niyamas, written by Dinu Roman. www.yoga.com/roots/yoga/info/YamasAndNiyamas.html
Yoga Sutras of Patanjali - Links to the Sutras in many international languages, online discussion group regarding Patanjali and his works. hrih.hypermart.net/patanjali
YREC - Patanjali - Article by Georg Feuerstein explores the authorship of the Yoga Sutras. www.yrec.org/patanjali.html