Happy International Yoga Day!
How cool! Wolfram|Alpha, a curated search engine, compiles and displays overviews of 216 yoga asanas — at the curious yogi’s fingertips! Info includes an illustration of the pose, muscles stretched/strengthened, joints used, modifications, as well as contraindications (who should not do this pose) and props used.
The basic instructions will get you into the pose, but go to a qualified instructor to properly explore the actions (stretching, reaching, drawing in, pressing down) of each pose — and to find out how to use the props listed! The database won’t replace going to a yoga class, but I love the idea of compiling an asana database for yogis that want to go deeper into their physical understanding of each pose. More info here.