Collaborative BI tools apply social networking features to allow people to share goals and evolve their thinking in real-time. When Bill in Finance generates his monthly Top Line report, Craig in Marketing can leave a comment on the "Revenue" column inquiring, "Is this billed revenue or booked revenue?" thus inviting Bill to annotate his report. And in a Web 2.0 world people can get and stay connected. Craig no longer needs to wait for Bill to email his revisions. Instead he can be notified of Bill's updates from his smartphone or tablet.