They forgot the quizmaster who does nothing but take quizzes such as "What type of car are you?" or "What type of fish would you be?"Also, the gift giver. The person who does nothing but send virtual drinks, hugs, stuffed animals and flowers to everyone on their friend list.I'd also like to add that the thing on facebook that consistently makes me laugh is when someone posts something such as "I wrecked my car on the way to work this morning and hurt my neck" and someone else gives it a thumbs up. Makes me chuckle every time.