Amazon Pay is a service offered to Amazon customers that allows them to use their Amazon account to make purchases on other websites without having to create a new account or enter credit card information. Amazon Pay is accepted at tens of thousands of retailers that offer the Amazon Pay button at checkout. Here are some resources that list stores that accept Amazon Pay:

• Knoji has a list of over 4,000 stores that accept Amazon Pay.
• Shopping Kim has a list of stores that accept Amazon Pay, organized alphabetically.
• Obillex has a list of popular online stores that accept Amazon Pay.

Its worth noting that these lists may not be comprehensive, as new stores may start accepting Amazon Pay at any time.