Important: This whitepaper applied to Internet Explorer 8 Beta 1, and has been removed. For current documentation, please visit the corresponding page in the Internet Explorer SDK:
Discovering the Internet Explorer 8 Developer Tools Internet Explorer 8 Beta 1 for Developers includes tools that Web developers need to efficiently debug their sites directly in Internet Explorer. Developers can immediately debug a site's HTML, CSS, and JScript from within Internet Explorer 8, rather than switch between Internet Explorer and a separate development environment. In addition, Internet Explorer 8 Developer Tools help developers identify why their site does not render or behave as expected. Finally, by making it simple to edit any site, Internet Explorer 8 Developer Tools makes experimentation and iterative development easy.