I haven't used oEmbed before, but I really like that it's possible to specify a max height or max width. That's not anything that Embedly's bringing to the table, it's just nice.<p>I do really like the idea of only having to call one service in order to get the embed code for a multitude of content.<p>What's the monetization plan? X free calls per month, $ after that? The only reason I'd be wary of using this service is that it could move to a model like that in the future, and I'd be locked in. Although, for the lack of up-front development time to integrate easily-embeddable content, it might be worth it.
Wow thats pretty cool. The sharedy.com example is particularly compelling. This really advances link sharing a step. It would be awesome to have something like this preview links in emails, IM's etc. Nice work