Speaker Deck - Another Competitor to Slideshare

There's another website setting out to compete with Slideshare, and I think it's really, really good. Speaker Deck is, as far as I can tell, only a few weeks old, but they've clearly been thinking for a long time about functionality, design and user interface.

Similar to Slideshare, Speaker Deck is a platform for uploading and sharing presentations. What sets it apart though is the clean interface and "scanability" of each deck. Just by moving your mouse, you can get previews of an entire deck just from a presentation's thumbnail. I've never seen anything like it. Just go to the site and see what I mean.

Also, Speaker Deck understands, just as Present.me does, that users want to navigate and skim presentations as quickly as possible.