Yoga Directory: listings and links of yoga resources

Includes categorized listings of yoga teachers, yoga centers, organizations, books, music, yoga therapists, health products, yoga retreats, vacations, personals, and yoga traditions.

http://www.yogadirectory.com/

American Yoga Association

Not profit organization. Includes general info about yoga, free yoga lesson and guidance on how to choose a qualified teacher amongst other things.

http://www.americanyogaassociation.org/

Yoga Journal

Comprehensive yoga information site. Offers details about poses, teachers, education, yoga community and more.

http://www.yogajournal.com/