Comparison shopping Web site has raised $10 million more in venture financing, according to a regulatory filing first cited by PE Week.

This is a cut-throat market now, with dozens of shopping engines out there, and more showing up almost every day. We’ve mentioned the recent appearance of and Ugenie., of Monterey, earlier raised $25 million last fall, after restructuring from an earlier effort. Oak has led this latest investment infusion, which now totals $35 million.

It is not clear what differentiates aside from its name, but we’ve contacted the company to try to find out.