The Guardian took an in-depth look at what Edward Snowden’s leaks means to the viewers. The site is composed with plenty of quality videos of experts explaining the issue within a long, vertical reading page.
There are multiple features I like about this site, including the clean design and layout, as well as multiple multimedia elements used to present the story and data. But the most interesting one is the videos that automatically plays when you scrolled to it.
And the matching HTML begins from something like this:
I think this java technique is really useful to learn. Although not everybody likes auto-play videos, but such feature sometimes makes the site more alive.