Twitter

Be generous with the 'like' button. Think of it more as a read-receipt and a little courtesy in one.

This "pulling in" effect is central to what makes this part of Twitter so magical. If you post something good enough for someone to retweet, they've effectively vouched for you, and you'll find yourself followed by yet more people who you'll probably get along with.

There's another flywheel here:

1. As you get to know more of these high-quality people,

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This creates a really well-aligned set of incentives and flywheel effect:

1. Twitter has interesting people


2. To interact with them, you have to be interesting


3. Being interesting means producing good content and partaking in good discourse


4. This good content and discourse attracts interesting people, GOTO 1