Self-publishing (like Hive) is definitely a recent development, as well... I used some of the very earliest blogs (about 1998) and they seemed so simple, compared to what we can do now!

I expect the next big thing we're likely to see is the disappearance of the desktop computer. Sure, people will likely still have big screens, but you'll just plug the same phone you carry into your desktop monitor, your laptop and so forth... one piece of tech, total portability.