The secondstrade campaign (the one I'm in) will give you that much for 20 posts a week. 100 posts a week and you'll get 5 times as much with your current rank.
I'm in the secondstrade campaign too, it seems pretty good. We get paid tomorrow, right Hex?
I believe that the weeks are counted on Mondays, but the payments are sent Wednesdays (from the history in the original topic for the campaign)