Marty Weintraub explains"situational" search, also known as "real-time" search for "small and big" events. These searches occur when people want information about fast-moving events, not necessarily the most important to the world, but important to someone. For example, someone may want to know why an unexpected motorcade drives through Manhattan to the Waldorf Astoria.
In an experiment that taps Twitter, Google and Facebook, Weintraub details an example. He also defines barriers for Google, how real-time search engines will capitalize on this trend, and how socialization plays a role.