If you are a developer and tasked with making sure the corporate rollout of Internet Explorer 8 goes without issues, you will find the following links of use.

The main page of interest to you is the IE Developer Centre where you will find all the information and links collected together.

Also:

• Internet Explorer Compatibility (a page with lots of links to useful app compat stuff)
• Internet Explorer 8 Readiness Toolkit
• Microsoft Application Compatibility Toolkit 5.5 (see IEBlog for more information)
• Internet Explorer 8 Compatibility Test Guide
• Differences between IE8 Compatibility View and IE7 (because compatibility view may still not be perfect)
• Introducing Compatibility View (includes details of IE=EmulateIE8 tag for when you have fixed the page)
• asp:menu fix for IE8 problem available (Patch for a rendering issue with asp:menu)
• Report a Webpage Problem Internet Explorer 8 Add-On (for when the problem isn't your web page)
• Internet Explorer 7 'Tips and Tricks' (Lots of useful stuff even for IE8 upgrades)