InsWeb Corp., the Gold River-based online provider of insurance quotes, reported a net loss of $870,000, or 18 cents a share, in the third quarter ended Sept. 30. The company lost $552,000, or 12 cents a share, in the third quarter of 2008. Quarterly revenue was $8.9 million, down slightly from $9 million in the year-ago period. Last month, InsWeb said it had reduced its work force from 87 to 61, the number of employees it had at the close of 2007.