I just wasted several minutes with Bomomo
http://bomomo.com/ (and I gotta tell ya, it was fun!). Please tell me if you've got a "more worthy" application for this "tool." Thanks!
While investigating a tad farther, I discovered Games for the Brain
http://www.gamesforthebrain.com/. The good news here is that my enjoyment level seemed to directly correlate with my increased time involvement. AND, I can claim it's all in the name of research. Smiles!