The "service" makes using Microsoft's services -- specifically Hotmail and Messenger -- beneficial to several causes. Microsoft shares a portion of its advertising revenue collected through its email and instant messaging apps, and although this is "nice" on Microsoft's part, there's a clear business-minded motivation behind it.
Despite that, at least there's some good coming out of the ridiculous amount of instant messaging and emailing we all do. Though we can't praise Microsoft too much: $1.5 million out of the billions Microsoft makes everyday is hardly significant. Then again, if more companies donated a tiny portion of the tremendous amount of money they make everyday, the world could benefit significantly.
