23.) Yoga Dork [Yoga]

URL: http://www.yogadork.com/

Approx. Subscribers: (Google Reader count: 1,740)

Main income source: Advertisements, affiliate links

Yoga was (and still is) one of those absolute prime topics for somebody to take over with great content and smart marketing know-how.

YogaDork does a great job, but this is one I still feel there is big room for.

This site creates excellent how-to as well as news related posts (who’s doing yoga, new products, etc.)

Just an overall great example of tapping into a topic of growing popularity and keeping things entertaining.