There are a lot of good causes out there that resonate with different people. Here's one that resonates with me. If you're interested, time is short for this particular challenge (I believe tomorrow is the last day). Basically, it's a collection of proposals for science-related projects at schools with high poverty rates. If that sounds interesting to you, please visit the link.
PS - There's a lot to sort through. My choice was "The Shocking Simplicity of Electrical Circuits" at this link. Not only was it the one that appealed to me most, but it also will get an extra 20% kicked in from various sources if the funding challenge it is a part of is met.