Aisha wrote:a few hundred more players
You missed a few zeros... try million. At least, at Farmville's height of popularity, it had, if I remember the reports correctly, something like 60 million daily players (if you can call that "playing" a game).
I really want to make a long reply explaining why Farmville became so popular, but there's a ton of articles on that subject on sites like Gamasutra, Ars Technica, and such. Social dynamics and lack of competition are the two big ones if i recall correctly. Since then, other companies have been able to reproduce the same success reliably with other game styles.