TabForACause.org offers “one of the simplest ways to raise money without lifting a finger (well, almost).” Add the group’s extension to your Web browser and every time you open a new tab, a fraction of a penny will be donated to a charity you choose. You’ll see an ad on each new tab, but feel free to ignore it.
Shopkick.com offers a free smartphone app that lets you earn points every time you enter participating stores—no purchase required. Those points can eventually be cashed in or turned into a charitable gift.
Socialvest.us encourages giving by directing a percentage of your purchases to any of more than 1.5 million charities. Socialvest purchases can be made at the organization’s online shopping site or by using a registered credit card at any of several hundred retailers.