Facebook is the big social network gorilla in the world and it is still growing. Today, another milestone has passed, as Facebook CEO, Mark Zuckerberg, just posted, “As of today, 250 million people are using Facebook…“ It was only 3 months ago that they announced they had achieved 200 million users. This is quite a remarkable growth curve. And even though some percentage of the “users” are not real people and/or are individuals with multiple accounts, the general adoption of Facebook is truly noteworthy.
[Update] This month (Jan 2012), Facebook surpassed 800 million users.