The latest Wolfram blog post is Twittering with Mathematica. Would you have expected a mathematics and visualization package to be able to interact with the API's of a social media package? A large set of case studies about how to do it. Nicely done. Hints to how WolframAlpha was done.
" ... The ability to analyze Twitter data and to tweet programmatically opens the door to many interesting possibilities. Imagine running a long computation that notifies you via Twitter when it finishes. Imagine finding new friends by programmatically determining friends of friends or friends of friends of friends. Want more followers? Perhaps you could analyze the Twittering habits of popular users to see what might make them so popular. The possibilities are endless, as they usually are with data explorations in Mathematica ... "