Steem's market capitalisation has ballooned exponentially since June 27th 2016, so in less than three weeks. It's now third most valuable cryptocurrency after Bitcoin, and to me at least there seems the momentum to bring it to second position after Bitcoin over the next few days. What's less clear of course with all online business models is whether it has legs. I guess we'll find out, if this is Tulip Mania for the internet age, or whether the likes of a smart, successful and surprisingly humble young man Mr Zuckerberg has something to worry about