Seth points us to TOMS Shoes.
Their approach is brilliant for two reasons. For each pair of these economical shoes you buy…Tom donates a pair to a child in need…no complicated formulas. The shoes themselves become more than a fashion statement…they become a conversation piece. Unless you wear Keens when was the last time you had a conversation about your shoes?
Watch the video here and ask yourself "How can I build giving into my business plan?"
Jon Dale 
TOMS shoes are super great — they are one of the first Buy One Give One businesses — this is now growing into a movement led by Buy1GIVE1 – a social enterprise based in Singapore and works with any business globally — so now with the help of Buy1GIVE1 any business anywhere in the world can get a Buy1GIVE1 – ‘CSR plugin’ for their business making it super easy and simple – and then they can give from every transaction – imagine the world when millions of businesses give every time they sell – the power of transaction-based giving.
Buy1GIVE1 is at http://ww.buy1-give1free.com or http://www.b1g1.com
David Anttony