09/27/2010 03:17 pm ET Updated May 25, 2011

Advertisers: 'The Jury Is Out' On Twitter Ads

Some marketers say that early results are promising but that advertising on Twitter remains an experiment. Other marketers, including PepsiCo Inc.'s beverage brands and Best Buy Co., who tested out Twitter's new advertising products--some without cost--haven't made new ad buys. Marketers say they definitely aren't ruling out advertising on Twitter in the future, but that it's still early days and they are figuring out what works.

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