Activity streams complement them by allowing employees to keep track of activities and messages from many different networks of people, groups and even applications in a stream of content over time, again conceptually similar to Twitter.

FORBES: Corporate Microblogging Helps Employees Migrate Work Conversations Online

If true, this opens up the possibility that tax havens complement onshore jurisdictions rather than substituting for them, and that the interaction between the two increases total economic activity in the world.

ECONOMIST: The less obvious uses of tax havens