Washington, DC -- The World Wildlife Fund has unveiled a new web site aimed at engaged couples looking to add a bit of green to their white weddings. The WWF's Weddings and Celebrations site offers tips on how to plan an environmentally friendly wedding, such as choosing eco-friendly reception venues, flower arrangements and food caterers. It also includes a wedding gift registry where couples can give guests the option of donating to the organization's conservation programs in lieu of traditional gifts. Couples also can choose to donate to the organization in lieu of traditional party favors, then download printable table cards announcing the donation. "Instead of getting a truck load of items they don't really need, many couples are deciding to use the occasion to tastefully raise funds for a cause they care about, like environmental conservation," said Terry Macko, the WWF's vice president of membership and partner marketing.