Lighthouse Trails Research has recently shown in quite a few articles just how extensive yoga is penetrating the culture, even being offered to kids at schools,
YMCA Montessori schools, such as: http://www.ymcabwv.org/kennett-montessori, and http://www.ymcabwv.org/page.aspx?pid=532, where yoga is part of the curriculum, and schools exclusively for kids yoga. Check out the following articles at their website:
http://www.lighthousetrailsresearch.com/blog/?p=10891.
http://www.lighthousetrailsresearch.com/blog/?p=10813.
http://www.lighthousetrailsresearch.com/blog/?p=240.
http://www.lighthousetrailsresearch.com/blog/?p=10533.
http://www.lighthousetrailsresearch.com/blog/?p=6342.
Examples of yoga for kids schools: http://www.sunnyskiesyoga.com/v1/, http://kidsyogaguide.com/,
and video of "Holy Yoga":
Mike Oppenheimer of Let Us Reason has presented an extensive three part article on Yoga at:
http://www.letusreason.org/current81.htm, and
http://www.letusreason.org/current82.htm, and
http://www.letusreason.org/current83.htm.