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We are planning to introduce a "group code" feature, which allows people within your known social circle to use and find rides among each other. Would that work?

We are currently shying away from another facebook app, but maybe that's the way to go for this.

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for success, you're probably going to need social hooks, and facebook apps is a good way.

the code feature could work to solve the issue, yes. or you could just allow drivers to administer how public their rides are, only allowing people to join if they are directly given the link to their ride or whatever.

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