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In Practice 16, I thoroughly cover the GivingWorks selling process. Sellers wishing to raise money are able to pick a benefiting nonprofit from a certified list, and designate a percentage of the proceeds (from 20-100 percent) to donate, when they list an item on eBay. These items will appear in the search results with a "charity auction" icon. When you go to the item page, you'll see the name of the nonprofit and some information about them, and the percentage of the final bid that the seller is donating. You can search eBay for your favorite nonprofits by name.