Here are a list of companies that donate every time you utilize their sites:

Pet Meds

1800 Pet Meds offers medications at low cost.

Good Search

GoodSearch is a search engine which donates 50-percent of its revenue to the charities and schools designated by its users. It’s a simple and compelling concept. You use GoodSearch exactly as you would any other search engine. The money GoodSearch donates to your cause comes from its advertisers — the users and the organizations do not spend a dime! Goodsearch has been featured in Oprah magazine, New York Post, the Times, and Fortune Magazine.

Good Shop

Raise money for your favorite charity when you shop online.

iGive

Donate by shopping through IGive.com. Online since 1997, iGive.com is the Internet’s first shopping mall where purchases benefit the shopper’s favorite cause. Click Here to enroll and start shopping.

AmazonSmile

AmazonSmile is a simple and automatic way for you to support your favorite charitable organization every time you shop, at no cost to you. When you shop at smile.amazon.com, you’ll find the exact same low prices, vast selection and convenient shopping experience as Amazon.com, with the added bonus that Amazon will donate a portion of the purchase price to your favorite charitable organization. You can choose from nearly one million organizations to support. Choose “Catales Incorporated” and begin shopping!