Internet Explorer 8 Release Candidate 1 is finally available! In order to get started with all the news, I suggest you to:

1. Download and Try it!
2. Read the official IE Team announcement
3. Go to the updated portal at http://msdn.com/ie for tons of developer content

In particular I recommend those pages:

• Building Web Slices, Accelerators, Search Providers
• Testing your website for IE8

Once again, well done IE Team!