Among those surveyed, 19% of respondents who saw all three types of ads said they intended to take test drives, while only 9% of Nissan ad nonviewers planned test spins.

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This means that advertisers could do things like automatically create scores of ad campaigns and test different ads on LinkedIn, or quickly change spending across LinkedIn and other social media outlets in real-time, LinkedIn says.

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The ad service remains in a test mode with a selected group of clients.

WSJ: Small Firms Say LinkedIn Works, Twitter Doesn't

The ad service remains in a test mode with a select group of clients.

WSJ: Small Firms Say LinkedIn Works, Twitter Doesn't

If you wanted to test a campaign ad, you held a focus group.

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Penney and Coca-Cola 's Brazil unit, have signed on for Microsoft's test of the program, hoping it will lead to "smart" ad spending that will target only ready buyers.

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Penney (nyse: JCP - news - people ) and Coca-Cola 's (nyse: KO - news - people ) Brazil unit, have signed on for Microsoft's test of the program, hoping it will lead to "smart" ad spending that will target only ready buyers.

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