Bottom of the pyramid in India

Addressing the needs of those at the bottom of the pyramid is often sighted as a business opportunity. However, its unclear, how to organise this and how to capitalize on these. Consulting companies like Monitor have are addressing these in the social sector initiatives - calling them market based solutions. Babajob.com, with its attempt to connect the people at the bottom with their prospective employers, is interesting. The success of this, is in my mind, un-clear. Do we have the Internet penetration? Is Indian household so tech savy?. Babajob is an interesting model of bottom of the pyramid meet yelp. com. Would be interesting to explore more such cases studies/ activities/ innovation across the world.