April 12 (Bloomberg) -- Google Inc. looks for ideas that are ``really crazy'' when sizing up potential purchases, the Internet company's top dealmaker said.

``We look at everything very carefully,'' Salman Ullah, Google's director of corporate development, said yesterday in a speech at a meeting of the Los Angeles Venture Association. ``The really crazy ones do really well.''

Google, owner of the most-popular Internet search engine, has about 15 people working on acquisitions that meet with dozens of companies a week, Ullah said. Mountain View, California-based Google responds to every e-mail pitching a company, while phone calls have a 10 percent response rate, he said.

The search engine, which had more than $11 billion in cash at the end of the fourth quarter, last year bought video-sharing site YouTube Inc. and DMarc Broadcasting Inc. to move into the market for radio advertising. Google also bought smaller startups including online software company JotSpot Inc.

``The crazy ones mean they ignore the usual restraints of investment levels required or design parameters or `Gee I need more servers than anyone ever thought was possible','' Ullah said. ``When you free yourselves from these constraints, you create crazy, cool things.''

Google wants companies that can build revenue streams from their users, instead of buying firms with a lot of users that don't bring in much in sales, Ullah said.

``We don't do traffic for traffic's sake,'' he said. ``It has to be highly monetizable.''

In the past Google has also used a technique called Monte Carlo analysis to size up a deal, where computer algorithms are used to answer questions.

Shares of Google rose $2.86 to $467.39 at 4 p.m. in Nasdaq Stock Market trading. They have climbed 1.5 percent this year.

To contact the reporters on this story: Peter J. Brennan in Los Angeles at pbrennan3@bloomberg.net; Jonathan Thaw in San Francisco at jthaw@bloomberg.net

Last Updated: April 12, 2007 16:20 EDT