It's 'a fine way to direct some money to your favorite charity while you shop,' Miniutti said. However, that's not a reason not to use the AmazonSmile URL while you're online shopping. 'Unless you are a huge shopper, these types of giving scenarios shouldn’t be a substitute for donating directly to a charity that you’ve vetted and trust,' Miniutti said. So if you're looking to make a big impact, using Smile probably isn't your best bet. In order to contribute just $25 to your favorite charity, for instance, you'd have to spend $5,000 on Amazon. The obvious downside of AmazonSmile is that 0.5% of your purchase most likely won't amount to a substantial donation. Yes and no, says Sandra Miniutti, vice president of marketing for Charity Navigator, an organization that evaluates and rates philanthropic organizations. The company says that tens of millions of products on the site are eligible for AmazonSmile donations, and it promises that using the service won't result in higher prices. On your first visit, you can select a charity from about one million choices-including the Red Cross, Planned Parenthood, and the ASPCA. The service makes sense for the millions of Americans who shop on Amazon and subscribe to its Prime service, which offers free two-day shipping.

Start by logging onto, and Amazon will donate 0.5% of your purchase–excluding shipping, handling and taxes-to the charity of your choice.

But if you use AmazonSmile, you can consistently give back when you buy items you regularly purchase. On Giving Tuesday, millions of people will make a donation in support of their favorite charity.

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