Lately it seems that every webinar, workshop, conference and business publication includes advice on optimizing social media marketing, which is why we thought this study on Twitter and Facebook use would be of interest to our readers. Part of the Gadgetology Report produced by Retrevo, a consumer electronics shopping site, the online independent survey sampled 771 respondents from across the United States (so we can’t tell you how the answers compare with people in other countries.) The Retrevo survey also reveals that men are more than twice as likely to use Facebook or Twitter after sex than women, and iPhone users are three times more likely than Blackberry owners (no surprise there). We don’t have any suggestions on how to calculate this into your social media marketing strategy, but some savvy marketers will understand the ramifications.