On April 27, 2009, Facebook announced it would open the entire activity stream via a new API. According to Ethan Beard, Facebook’s director of platform marketing, the new Facebook Open Stream API will be two-way, meaning developers can leverage the data but people will also be able to respond (for example to comments), via the third party applications. Developers will be able to use the entire feed via one simple API call, or use parts of the feed.

Some did not expect Facebook to become so open, as the company was previously very restrictive when it came to taking data outside of the community. Given intensifying competition from Twitter, who is very

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