While I did make and launch http://browseforacause.com a few months ago (which this may or may not have been inspired from), I welcome this launching - any innovation to donate more money to charity can really only be a good thing.
Thanks for the kind words. I can tell you they didn't find out about browseforacause till after they'd started working on browsarity. They started out doing something else with affiliate links and it morphed into this.
There are quite a few competitors in this affiliate-charity donating space. I launched mine: shopwisely.org almost two years ago. I don't really maintain it anymore so all luck to browsarity and hopefully they turn out more successful than my venture.