Notes

1. Thanks to Ed Nusbaum for this quote.

2. SMS is the abbreviation for Systems Management Server, which is a communications protocol that allows the exchange of short text messages between mobile telephone devices. In different parts of the world, the acronym SMS is used as a synonym for a text message or the act of sending a text message even if SMS isn’t actually being used. With 2.4 billion active users, or 74 percent of all mobile phone subscribers sending and receiving text messages on their cell phones, SMS text messaging is the most widely used data application on the planet. In spite of its wide use, as a cost-cutting effort, on August 14, 2008, Twitter removed SMS access to their U.K. service.

3. Pownce is a good example of the changing landscape of social media. Leah Culver was interviewed just a few months before her company closed its doors on December 15, 2008. Her interview and insights are still as valid as ever, so we left them. Technology will change, some existing players will go extinct, and many new companies will take their place.

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