FraudWall Technologies Inc., a Palo Alto, Calif.-based anti-clickfraud startup, has called down $3.25 million of a $4.5 million Series B round led by JK&B Capital, according to a regulatory filing. The company was founded and seeded by Jim Pitkow and Ron Conway, with Sherpalo Ventures and Baseline Ventures coming aboard for the Series A. www.fraudwall.net