http://www.ted.com/talks/lang/eng/dan_pink_on_motivation.html
Fascinating ted talk about intrinsic and extrinsic motivation and how they work when facing creative tasks. Very useful.
http://www.sparked.com/
Crowdsourced volunteering for non profits. Interesting idea about driving value from small amounts of time, crowdsourced.
http://lacaniyu.com/en/
Charity in Mexico that Ana Paula and Iris are involved with.
http://skipumps.com/
Range of pumps for developing world countries. Hand pumps, foot pumps and so on. Nothing particularly ingenious though and not really applicable to our likely uses.
http://www.mayapedal.org/
A Guatemalan NGO that build all kinds of whacky devices from bicycles including water pumps, blenders, nut shellers, mill / corn threshers. Incredible stuff.
http://www.charitynavigator.org/
Charity Navigator is a charity comparison web site in the US.
http://www.guidestar.org/
GuideStar is a charity comparison web site in the US.
http://www.skollfoundation.org/
The Skoll Foundation was founded by Jeff Skoll to promote social entrepreneurship by investing in, connecting and celebrating social entrepreneurs.
http://ripple.org/
Support charities by using ripple to search, to view ads, etc. They donate 100% of their revenue to charities, so it's not a business per se.
http://www.goodsearch.com/
Your chosen charity is paid if you search the web with GoodSearch, it's powered by Yahoo.