Normally I would down-vote such a comment, being that it's all promotion and no contribution...

But I clicked the link and have to say that site is gorgeous. I signed up to give it a try.

I'm no where affiliated with the site, I like, like yourself, how clean their service is compared to slideshare.

why?

Because it's a new service that focus on slides designed by tech people, so it would be nice to have another tech presentation to live there.