They record sources sometimes, but they aren't necessarily all that conscientious about it. For them, genealogy is a social experience and email connects them with more interesting people with more interesting stories. They're also the most likely to be seen at family reunions, notebook or tape recorder in hand. Most of these folks don't actually do this for a living, but they have a lot in common with the folks that do. For them, documentation is the key.
Quality is all important, quantity immaterial.
Unlike the hobbyists, they feel genealogy is far less social, as they're not all that impressed with oral history, in that they suspect that many of the cute and interesting stories are exaggerated and even fictional. They tend to spend lots of time scouring census records, church registers, and public record offices. Like the Collectors, they are very turned on by the Internet, but unlike them, they are using it to locate new record sources in distant places where they can finally get what they need to prove that elusive connection. These folks tend to happily fit the stereotype of the genealogist at the microfilm reader in the deepest, darkest basement room in the library. These folks aren't as visible as the other three categories.