Early geographers spent a good deal of their time traveling and writing about their experiences. One prolific explorer and author, Idrisi, chronicled his 75,000 miles of travels. Imagine how helpful blogging would have been for him. A nice content management system, a laptop, and a satellite modem would have been a good way to report from the field. Some of his descriptions were the first to reach the the new world, including detailed depictions of cities like Mogadishu.