What started as a bet between a guy named Ola and a guy named Jørgen has turned into that rarest of Web phenomena: A ‘crowdsourced’ site that isn’t Astroturfed, has a substantial following, and, most importantly, has a noble goal: Collecting one million pictures of giraffes by 2011. Ladies, gentlemen: OneMillionGiraffes. Unlike many flash-in-the-pan Internet trends, OneMillionGiraffes has been going strong for almost a year: When the Telegraph interviewed the site’s creator in August...