Web 1.0 refers to the early World Wide Web from 1991-2003, which featured static pages that users could only read. Web 2.0 began around 2004 and features dynamic, user-generated content through technologies like blogs, wikis, social media, and more. Web 2.0 aims to be a customizable network to link users to information and each other through an easy to use interface. Basic programming knowledge and tools like HTML, CSS, PHP, MySQL, and JavaScript are required to develop for Web 2.0.