Why has Facebook co-founder and CEO Mark Zuckerberg joined Viddy? There are many reasons, although most probably aren't different to the ones given when he joined Pinterest. Zuckerberg often tests out the work of new Web companies, but he seems to make public accounts on quickly-growing apps and services, especially those which leverage Facebook.
On Viddy, Zuckerberg already has thousands of followers (viddy.com/zuck). More interestingly, at the time of writing he is following 56 other Viddy users.
Zuckerberg only has one video on the service though. Titled "Baby Beast" (embedded above for your viewing pleasure), it has over 400 comments and over 3,000 likes.
For those who don't know, in addition to Facebook (over 13.37 million Subscribers), Zuckerberg also has profiles on Google+ (over 638,000 followers), Twitter (over 149,000 followers), and Pinterest (over 9,000 followers). He's only slightly more active on Twitter than he is on Pinterest, and he's not active on Google+ at all, at least not publicly.
Two weeks ago, I wrote an article titled "The Facebook effect: Timeline app developers rule the App Store." This was just after Viddy became the top free iPhone app, and it was pointed out to me that seven of the top 10 grossing iOS apps are integrated with Facebook, as are seven of the top 10 free iOS apps.
Earlier last month, Facebook said Viddy was doing very well:
Viddy recently integrated its mobile app with Timeline to give people more ways to share the videos they're creating with friends. Since integrating with Timeline in February, Viddy has gone from 60,000 monthly active users to more than 920,000, and seen over 9,000,000 interactions with Viddy content on Facebook. Additionally, the startup has more than doubled its average daily sign-ups since integrating with Open Graph.
Personally, I haven't bothered with Viddy nor Instagram. The reason is simple: I have a BlackBerry and whether I want to or not, my phone is simply more business than play. Zuckerberg has been known to switch between iPhones and Android smartphones, though he is clearly using the former right now.
I say "clearly" because Viddy is only available for iOS. Android and Windows Phone versions are expected to be in the works, based simply on logos that recently appeared on the site's homepage.