Bob Tippee Editor Online communication offers a benefit that ranks below the more-obvious delights, such as connectivity and speed, but that is important nevertheless. As anyone with a web site knows, online wizardry makes communications more measurable than ever before. It's now possible to count visits, page views, clicks, tweets, posts, and nearly everything else that happens on the internet. In fact, online communication generates so many numbers that making sense of them all requires special computer programs and technical training. It also gives analysts a chance to assess what's important to the public—or at least that part of it that's active in cyberspace. Window on opinion Chevr...