Yin yoga is a more elongated version of yoga, where yoga asanas and poses are held for a longer time. It aims to affect the ligaments, joints and bones of the body rather than affecting the muscular tissues of the body. It is a more meditative yoga.
Kripalu Yoga was founded by Amrit Desai who was inspired by Sri Kripalvananda. This yoga lays great emphasis on meditation and breathing pace. It focuses on prana or the flow of energy attuned, by reaching a more unclogged state of mind and body.
Yoga Fitness Flow - Different types of yoga (Asthanga-Yoga). I verified that Read It does lead to full content links to the various forms of Yoga. Lots of side ads but content good. - Get Your Sexiest Body Ever!