Apple has created a new 'iPad Ready' webpage to showcase websites that are compatible with the iPad. ie websites that don't require Flash.
The list already includes some major sites:
CNN When youre browsing CNN.com on iPad, the site automatically displays an HTML5 video player, providing you with the best possible viewing experience.
Reuters An HTML5 video player on Reuters.com lets you view most of the sites video content on iPad.
New York Times The HTML5 video player on the NYTimes.com home page displays video in a format viewable on iPad.
Vimeo The popular video-sharing site Vimeo.com features an HTML5 player that displays most videos on iPad.
Time The 24/7 news site features an HTML5 video player for viewing recently published video.
Major League Baseball MLB.com features a browsing experience optimized for iPad, providing fans with live baseball action at their fingertips.
The White House WhiteHouse.gov is a largely standards-based site that displays video using the HTML5 video tag.
Virgin America Virgin Americas site is almost entirely standards based, so it looks and works great on iPad.
Sports Illustrated Recent video features on SI.com are displayed via an HTML5 player compatible with iPad.
Flickr Flickr now displays video via an iPad-compatible HTML5 player.
People Magazine An HTML5 video player on PEOPLE.com displays video in iPad-viewable format.
TED TED.com is completely optimized for iPad, displaying video, comments, ratings, and more.