Santa Monica-based GraphEffect, the venture-backed developer of social marketing software, said today that it has hired both a Sales and Marketing VP. The firm said it has appointed David Pollet as Vice President of Sales, and named Jennifer Cooley as Vice President of Marketing and Business Development. Pollet joins from [x+1], and also served at Bankrate.com and Andover.net, along with Bank of America and LendingTree.com. Cooley was previously General Manager at Buddy Media, and also served at Collective Media. GraphEffect is venture backed by Lerer Ventures, Thrive Capital, Founder Collective, Rincon Venture Partners, CrossCut Ventures, and Baroda Ventures.