Facebook opens JavaScript developer API

Facebook have opened up their platform via a JavaScript API that allows you to host apps on your own server but leverage the Facebook community of your users.  Jeremiah Owyang has a nice summary of what this means for the non-developers of this world.

I really like this approach, there’s a definite trend to offering simple API’s using JavaScript, it’s a quick and easy way to integrate functionality that in the past would have required a potentially more complex server to server integration.  Another advantage of this approach is that you move the integration cost from the server to the client.