We get a lot of social reinforcement for this posture by being heralded as savvy, analytical, and smart.

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The social reinforcement, in this case, is built in, as the group has to pay the bank back together.

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Tumblr lowered the bar to creating a beautiful, dynamic website and raised the payoff in the form of positive social reinforcement.

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MFIs lend to small groups directly, and use social reinforcement (ie peer pressure) to ensure that each member pays back the loan.

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Social Animals are well evolved for intermittent positive reinforcement.

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The second thing is Keas social feed, which is another form of positive reinforcement, in this case from peers.

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So that reinforcement, that mirroring effect you get from social media really enhances whatever position you have in mainstream or in blogs.

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Social media (in China, BBSes, QQ, Sina Weibo and other mobile texting services) provide reinforcement, acting as word-of-mouth before the final purchase decision is made, which may be made online or offline.

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