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Interesting; however in my opinion I'd redesign that page. Having a lot of the information behind the interactive scrolling will cause it to be lost. Personally, and I know a lot of others, just scroll the page and look for the relevant information in paragraph form. Much easier to digest. This implementation forces me to stay on the page and is a bit frustrating.

I just posted the exact opposite of what you said :) Usually these "scroll hacks" are annoying. In this particular case the "flow" of calls is captured really well this way, IMHO.

Heheh, to each their own :)

Thats a pretty cool use of scroll to explain the product. Any details on how you guys built that? Is it completely custom or did you use some known JS/CSS lib/tricks?

Thanks for the kind words! We used a library called ScrollMagic (https://github.com/janpaepke/ScrollMagic) to handle the scroll listening and event triggering.

I saw this a while back and then forgot to go back and check it out. This looks interesting. Thanks for posting.

FWIW the scrolling effect is all jittery (and pretty much unusable) in Safari.