Their HTML5 viewer currently only works on their website, not embeddable on your own site.

They embed a flash app.

>... Scribd’s embeddable document reader still uses Flash ...

Probably not for much longer, though.

With all due respect, I know that a lot of work goes into these YC companies, but how is this ground breaking? Not simply for that fact that this seems like a feature the Scribd provides but also that fact that this is clearly not the next Google. We're seeing a lot of YC companies and startup founders in general creating these non-compelling web 2.0 features and 'apps' getting a lot of buzz and a descent amount of funding. This is not good for the startup ecosystem as a whole. The VC and angel investors who would have provided some kind of stop gap to weed out the next Pets.com have all drank the proverbial Kool-aid and are tripping over themselves to invest in these companies. This is creating a bubble scenario. This will hurt YC and in the long term. Please let us return back to sanity.