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If you scan through all the groups on Facebook and can't find one that fits your needs, no problem—just start your own.
Note:
You can create almost any group that you can dream up. In its terms of use fine print, Facebook reserves the right to pull the plug on hate groups and other unsavories—and it has. If you come across a candidate for plug-pulling, you can send a heads-up to Facebook's customer service team by scrolling down to the bottom of the group's profile page and clicking Report Group.