Startups to watch

It's getting crowded on the Web 2.0 frontier, but there are still some startups that truly stand out. Business 2.0 Magazine identifies the ones most likely to strike gold in 2007.

Loopt offers around-the-clock friend tracking. Cell-phone customers are using Loopt to let their buddies see their locations. It's already a hit with some 100,000 Boost Mobile subscribers who want to know not just what their posse is up to but where it's at.

Funding: $5 million (New Enterprise Associates, Sequoia Capital)

Founder & CEO: Sam Altman (shown right)

Headquarters: Palo Alto, Calif.

Employees: 18

Founded: 2005

Business model: Advertising, subscription

Bragging rights: Partnership with Sprint

Next up: Signing up sponsors; in talks with second U.S. carrier

Contact: Bizdev@loopt.com

Tell us what you think about our 25 startups to watch: Are any of them the next YouTube or MySpace?

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2014 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2014. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2014 and/or its affiliates.