GlobalGiving, a Web site that matches donors with community-based development projects, is encouraging its donors to play Cupid.

As part of its “Operation: Give Love” campaign, anyone who donates to one of the Web site’s many projects —such as $10 to buy notebooks for children in Sierra Leone or $100 to help a Kenyan teen mother start a business—will receive up to 20 “e-arrows” to they can send by e-mail to their nearest and dearest for Valentine’s Day.

People who receive the arrows are automatically entered in a raffle to win a bouquet of flowers, and shooters win an extra raffle entry for every “e-arrow” they lance.

Since the campaign started on Wednesday, about 10 percent of those who have donated through the Web site have used the e-arrows to tell friends about their charitable contribution and suggest they make one of their own, says Joan Ochi, GlobalGiving’s director of marketing communications. “It’s a fun opportunity for people to think about how a little bit of money can go a long way,” she says.

What are you doing to raise money on Valentine’s Day? Click below to share your holiday fund-raising ideas.