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“Twitter has achieved in less than six years what Nike, Apple, and Target took decades to do: To be recognizable without a name, just an icon.”

— Armin, in Twitter Gives you the Bird

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“Facebook is like shouting into a crowd. Twitter is like speaking into a room.”

— Teenager participating in a focus group at Microsoft Research, as quoted in Teens slowly migrating to Twitter.

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“Facebook places more of an emphasis on who you are and who you know. Twitter restricts users to 140-character updates and is more about what you say than who you are.”

— Christian Jarrett in Facebook or Twitter: What does your choice of social networking site say about you?

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“Your thoughts can reach millions in minutes, no other platform can enable that as seamlessly as Twitter does.”

— Shakthi Vadakeypat, in an answer to Is Twitter an effective communication tool? Why?