Though Twitter is currently a media darling, only 8% of advertisers and consumers think it is a “very effective” promotion tool, according to June 2009 data from LinkedIn Research Network and Harris Interactive.

The research, which included surveys of US advertisers and Internet users, found that while 83% of advertisers were familiar with Twitter, only 31% of Web users were.

Naturally, younger respondents were more familiar with the microblogging site. Only 11% of 18-to-39-year-old advertisers did not know enough about Twitter to have an opinion on its value, compared with 20% of advertisers ages 40 to 49 and 21% of those 50 and older.

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