People forget that companies like Groupon and Zynga are still real businesses. Both are still $1B+ market caps.
As someone who went to both IPO lunches, it was a wild time. Throw Renren, and several other companies from that time period into the mix. 2012 was almost 5 years ago. Unbelievable. Well, at least tech companies actually did go public.
To add another one, Linden Lab (Second Life) is still around too. Though it's not in that range--brings in about $60M/year [1] Certainly not the revolutionary thing it was going to be once but the shocking part is that it exists at all.
Everything about their engine and viewer was still do bad last time I checked that I would be shocked if they could possibly pull proper VR off. I never understood why the controls completely reinvented the wheel instead of being more like what we are used to from video games.
Pretty sure I read a while ago that Zynga's corporate HQ which they bought was now worth more than their business. Or maybe it was some other company with no long-term competitive advantage.
