I propose a meta theory: the popular sites are those that induce the procrastination the best, and there is a lot of people working hard to make their software popular.
Some are specifically focused in at the level of prompting addiction. Zynga, for example, has put a lot of work into optimizing the rate of rewards for just this effect.
Yep. Other model is to set up mechanism that trains at least some people to produce addictive content for people within your system (Reddit does this).
I propose a meta theory: the popular sites are those that induce the procrastination the best, and there is a lot of people working hard to make their software popular.
Some are specifically focused in at the level of prompting addiction. Zynga, for example, has put a lot of work into optimizing the rate of rewards for just this effect.
Yep. Other model is to set up mechanism that trains at least some people to produce addictive content for people within your system (Reddit does this).