What are the principles behind building the Directory?
Unfortunately, there are a lot of these: • Group like subjects, and like videos, together. • But don’t create idiosyncratic categories that “cut across” other more common categories (people will just have to recategorize the videos you put there). • When there are too many like videos in one category (say, 10), create subcategories. • We’ve decided to capitalize category names. Use “Molecular Biology,” not “molecular biology or “Molecular biology.” • Do not create identical category names. For example, do not use “United States” for both the “U.S. History” and “U.S. Geography” categories; prefer the latter. Do repeat information about the parent category in the names of subcategories, if necessary. That’s useful redundancy. • More generally, choose category names that fully identify their subject. For example, don’t use “Poetry” as the name of your category, if the subject is writing poetry. • In general, don’t create categories devoted to songs, cartoons, or other such video types. Pe