Random anecdote from the early days of LinkedIn: around 2004 or 2005, I remember reading a news story where a Monster.com exec was asked if they'd want to acquire LinkedIn. This is back when LinkedIn only had 1m or 2m members while Monster was the leader in the job postings space. The exec responded with something like, "LinkedIn is still very small and unproven, but I suspect that if they succeed, Monster wouldn't be able to afford them." Interesting to see that in 2016, Monster got purchased for ~1.5% of LinkedIn's acquisition value. (In 2004, LinkedIn was probably 1.5% of Monster's value -- if that.)