• The Wall Street Journal, Monday, September 27, 2010 10:52 AM

How have marketers responded to Twitter's efforts to carry their messages? With "mixed reviews," reports The Wall Street Journal. "The popularity of Twitter has fueled expectations that marketers could use the service to target relevant ads to consumers interested in real-time information about breaking events and other topics," reports The Journal.

"Some marketers say that early results are promising but that advertising on Twitter remains an experiment ... Other marketers, including PepsiCo's beverage brands and Best Buy, who tested out Twitter's new ad products haven't made new ad buys." Regarding Twitter as a suitable platform for marketers, Universal McCann EVP David Cohen tells The Journal: "The jury is out." Since debuting its highly-anticipated ad products in April, Twitter has signed over 30 top brands, including Coca-Cola, Virgin America and Starbucks.

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