Here's What To Say When Someone Says Instagram Proves It's 1999 All Over Again

Here's why Facebook's $1 billion Instagram acquisition was smart. While Facebook owns photo-sharing on the Web, it had an open flank on mobile, thanks to in part to its slow, poorly-designed HTML5 apps.  Instagram was exploiting this flank, reaching 35 million users in under two years. When Instagram raised $50 million, it sent a clear message to Facebook that it was not going to have to worry...