This document lists and summarizes the most useful websites on the internet according to the author. It describes 13 websites including Google, Facebook, YouTube, Wikipedia, WordPress, Blogger, Bing, Twitter, PayPal, Amazon, Adobe, and Flickr. These websites provide services such as search, social networking, video sharing, blogging, e-commerce, photo sharing, and creative tools. The document provides a brief description of the purpose and functionality of each website.