Nintendo is set to release a new functionality for the Wii gaming system: Wii Fit includes boxing, aerobics, fitness training and, yes, yoga. The New York Times put Wii Fit through its paces this week, including a once over from renowned yoga instructor and Om Yoga founder Cyndi Lee. Lee found the yoga instruction a little wanting, even noting some incorrect alignment instructions.

With the advent of warm, muggy weather comes an annual yoga tradition - sweaty palms and slippery mats. While the warm air can be great for opening your tight areas, slipping on your mat is more than an annoyance - it can compromise the integrity of your poses and even lead to injury. And if you've been putting off buying your own yoga mat, don't hesitate any longer. All this talk of perspiration offers a pretty convincing reason to keep your mat to yourself.

One of the most difficult things about wheel pose (besides the intense backbending, of course) is keeping the feet parallel while holding the pose. The toes always want to turn out, but this is a vulnerable position for the knees. One things that helps is placing a yoga block between the thighs down toward the knee. Squeezing the block with the thighs helps the legs stay parallel all the way down to the floor.

Walk into a vinyasa-style yoga class these days, and you will see a lot of brightly colored Yogitoes Skidless towels adorning the mats around the room. These mat-size towels are especially popular with people who get hot and sweaty practicing Ashtanga and hot yoga. But what benefits can they offer your practice? Read my review to get the scoop.

Calling all Ashtangis! Ashtanga master Sri K. Pattabhi Jois has announced that he has been given the all-clear from his doctors to travel to the U.S. He plans to lead classes May 24-26, 2008 in Flordia. Jois was forced to cancel a U.S. workshop last year due to ill-health. His upcoming trip will provide a rare opportunity to study with the master without traveling to India.

Dolphin pose (sometimes also called puppy pose), is a version of downward facing dog done with the forearms on the floor. (This photo shows a down dog split in dolphin, which is a variation on the pose). Dolphin is a great option for yogis with wrist problems, because it allows you to do this essential yoga pose without putting any pressure on the wrists.

To build arm strength, try coming from a classic down dog to dolphin and back a few times. Move slowly, lowering the forearms simultaneously to the floor, taking a few breaths, and then restraightening them with control.

The yoga forum has gotten a whole new look, making it more inviting and easy to use. This is a great place to bring up your yoga questions and discuss them with a community of other yogis. Recent topics have included the benefits of lengthy inversions and what to do when the mind wanders. Go forth and post!

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If you only own one yoga book, it should be Light on Yoga by B.K.S. Iyengar. First published in 1966, this classic book remains the go-to source for information on hundreds of yoga poses. Prepare to be amazed by some of these photographs!

Learning to practice headstand in the center of the room is a big milestone in your yoga practice. Here are some instructions to help you get on your way:

How to Do a Headstand

Headstand Video

Headstand Tips

About.com Exercise Guide Paige Waehner has some great ideas about how to approach exercise after pregnancy. Just because celebrities like Jennifer Lopez and Nicole Richie seem to bounce right back to their pre-pregnancy bodies doesn't mean that is the norm, in fact quite the opposite. A healthy approach to weight loss takes the long view, and postpartum yoga is a good place to start.