Since Eolas won its case against Microsoft Internet Explorer, people are wondering what to do with all their object, embed and applet tags. Here are some resources from the Apple Developer Connection site: Preparing Websites with Active Content for Upcoming Changes to Internet Explorer for Windows, Authoring Websites for Compatibility with Internet Explorer for Windows FAQ, and Creating the Best User Experience for Active Web Content.
And from Macromedia, Active Content Developer Center.
And finally, from the horse’s mouth, Information for Developers about Changes to Internet Explorer.