WebSourced, a search engine marketing firm, says its clients are now billing more than $1 million a month in pay-per-click advertising.

WebSourced introduced the service in March. In August, the total billing exceeded $300,000.

WebSourced earns a percentage on per-click billings.

“Our strategic move into the PPC arena has exceeded even our expectations and we look forward to continued growth,” said Pat Martin, president and CEO of WebSourced, in a statement. “One recent forecast by Thomas Weisel Partners predicts search advertising will grow 63 percent this year.”

WebSourced represents more than 1,300 clients.

WebSourced: www.websourced.com