ValueClick, Inc. reported a 55 percent increase in its net profit for the fourth quarter over a year ago, the company announced. The Westlake Village-based online marketing company earned a profit of $22.1 million, or $0.22 per diluted share, on revenues of $160 million for the quarter ending Dec. 31. That is a 55 percent increase over the $14.2 million, or $0.14 per diluted share, on revenues of $116.7 million for the same period in 2005. For the full year, ValueClick reported a net profit of $63 million, or $0.62 per diluted share, on revenues of $545.6 million. That is also a 55 percent increase over the net income of $40.6 million, ore $0.45 per diluted share, on revenues of $304 million for fiscal year 2005. The successful integration of acquisitions made in 2005 helped the company in its strong performance for the year, said CEO James Zarley. “The leadership positions we have built in performance-based marketing solutions and value-added online networks give us confidence to anticipate continued strong growth and healthy margins in 2007,” Zarley said.