This document discusses jQuery, an open-source JavaScript library. It begins by listing some example websites that use jQuery features. It then poses questions about jQuery's origins, popularity, impact on development, and potential to drive innovation. The document outlines how the web landscape has become more complex with many technologies and standards. It argues that jQuery was well-positioned for success due to factors like innovation, open-source model, large community, and ability to solve many problems. It notes how jQuery made client-side development more exciting and unified browser differences. In closing, it highlights some of jQuery's core features and capabilities.