Aerobics

Aerobics and Fitness Association of America (AFAA) - Includes an online trainer certification course, as well an online textbook.
www.afaa.com

Alexey's Stepcenter - Provides animated choreography videos, a step language dictionary, a music board, links, and message board.
www.stepcenter.com/

Cardio Strippersize - A dance-based class that combines stripper-like moves with a cardio workout.
cardiostrippersize.com

DanceNet Fitness - Dance as an alternative to mainstream fitness. Instructor and Studio listings by state.
www.dancenetfitness.com

Easy Exercises - An online programme of exercises to be incorporated into your everyday life.
www.easyexercises.com

FitMoves - For professionals and enthusiasts. Articles, choreography exchanges, videos, spinning database, sample programs, personal training tips.
www.fitmoves.com/

Fitness Harmony - Provides tips, news, and videos. Also includes a member's only area.
www.FitnessHarmony.com

GetUpMove - Uses the video game "Dance Dance Revolution" to exercise. Testimonials, introductory guide, forums.
www.getupmove.com/

Jacki's Aerobic Programs - Jacki Sorensen's dancing, workout and strong step classes includes the US and Australia. Class locator, gear, videos.
www.jackis.com

Jumpybumpy - Instructor portal offering aerobics and step choreography, videos and music, conventions and workshops, trainer listing.
www.jumpybumpy.com

Mad Dogg Athletics and Spinning - Education, apparel, forums, advice and accessories. Venice, California.
www.spinning.com

Mr. Move it - Fitness trainer and creative artist of movement. English and German.
www.mrmoveit.org

Stride Walkfit - Brisk arm movement with the use of poles in conjunction with walking, also a series of stretching and toning exercises.
stride.gabel.net/

Turnstep - Large repository of aerobics choreography and patterns plus video reviews and an active discussion forum.
www.turnstep.com

Vita's Vibe - AFAA instructor and examiner's site includes forum, routines, news, tips, and guidance.
www.vitasvibe.com