Tweeters have been organising their thoughts using hashtags for years. Now Mark Zuckerberg wants to bring them to his social networking siteAge: First used on Twitter in August, 2007. So five and a half.Appearance: #likethisAnd what exactly is a hashtag? Anything preceded by a #.As in? As in #nothelpful.That's not helpful....
× Just a test of the new info bar. What do you think?