This document discusses several popular social media and technology companies. It mentions that Facebook is the world's most popular social networking website, YouTube is the largest video sharing site, and Twitter is a microblogging platform that hosts over 139.4 million blogs. It also notes that Google is the most used web search engine, Microsoft originally created The Microsoft Network as a collection of internet sites and services, Yahoo surpassed Google in July 2013 for the number of U.S. visitors, Ask.fm is a social networking website where users can ask anonymous questions, and Pinterest is a pin board-style photo-sharing website where users create theme-based image collections.