Business has also changed since Facebook acquired FriendFeed in 2009

In addition to some of the changes that I mentioned in my last post - there's no Google Reader output to aggregate any more - Kurt Wagner has pointed out two other things that have changed over the years.

First, Wagner noted that Facebook's acquisition of FriendFeed - "considered a big deal at the time" - was a $50 million acquisition. Compare that to the $19 billion acquisition of WhatsApp last year.

Another difference? At the time of the acquisition, Facebook had 250 million users. It's grown a bit since.