clipped from: www.emarketer.com   

According to a report just released by Sharpe Partners, a marketing agency, 89% of US adult Internet users share content with friends, family and associates by e-mail, and they do so often.

The study on viral marketing reported that 63% of the respondents share content at least once a week, and 25% share daily or almost daily.

Frequency that US Internet Users Share Content* via E-Mail, September 2005 (% of respondents)
Number of People with Whom US Internet Users Share Content* via E-Mail, September 2005 (% of respondents)

The e-mails are also usually shared with more than one person, with some 75% of respondents forwarding content to up to six other recipients.

Types of Content that US Internet Users Share via E-Mail, September 2005 (% of respondents)
Likelihood that US Internet Users Will Share Branded vs. Non-Branded Content* via E-Mail, September 2005 (% of respondents)
Impact of Brand Sponsorship on Whether US Internet Users Will Share Content* via E-Mail, September 2005 (% of respondents)