This site in its current incarnation has been live for about three days now.
It’s gonna be the last game in the Myst series–Cyan laid off all but two employees yesterday–and the site’s look and feel is spectacular. They used some tricks to get it to expand to the width of your browser, while keeping the important content to a reasonable width in the center.
There’s a Puzzle section with nostalgic puzzles from previous Myst titles, a Bonus section for those who complete the puzzles, and some QTVR bits I believe should have employed Shockwave instead. But all in all, I love it.