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In this post, I provide an overview and analysis of the Facebook Plaform and what we have learned about it in the three weeks since it launched.

To start, my personal opinion is that the new Facebook Platform is a dramatic leap forward for the Internet industry.

First, perhaps the most architecturally interesting aspect of the Facebook platform is the fact that everything routes through Facebook's servers.

This is known as a "proxy" model -- you interact with a third-party Facebook application by interacting with Facebook's servers which turn interact with the application's servers.

Notes from Zuckerberg Keynote:

Facebook is growing 3% per week, which is 100,000 new users per day.

The fastest growing demographic is the 25 and up age group.

50% of registered users come back to the site every day.

Talking about how Facebook opened up registrations last year, and launched News Feed.

Facebook is generating more than 40 billion page views per month. That’s 50 pages per user every day.

6th most trafficked site in the U.S.

More page views than eBay. Says they are targeting Google next.

Applications: photos, groups, events. Plug into profiles. Use all the real connections people have

Their photos app is by far the number one photo site on the internet.

Events: similar story. 3x more ppeople invited to events thru facebook than evite.

Says these apps work so well because of the “social graph” - a network of connections through which people share information with friends.

The news feed feature in particular allows information to be pushed out through the social network to more people, faster than any time in history.

Deep intergation, significant freedom to monetize via ads and transactions.

Dan Lewin, Microsoft VP, on stage talking about integration of Popfly into Facebook.

Amazon exec on stage

Max Levchin, CEO Slide on stage.