While we were said to be in the Information Age probably for a few decades already, it only started to feel like the Information Age around 2-3 years ago. What marks the Information Age? Well, certainly the information, or it wouldn't be called that, and more importantly the accessibility of the information, as well as it's amount.
Sure, the Internet was invented many years ago, and the first PC was too, but that didn't mark the start of the Information Age. You don't say that there is a thunderstorm from just the first drop of water that falls from the sky. Across the years, more droplets fell, with the introduction of powerful search engines, people realised that if they created a website, they wouldn't have to spend that much on marketing and advertising anymore, and so they did, sharing information in the process. Wikipedia started, the encyclopedia which pooled together experience, and knowledge from anyone willing to contribute. Online forums started sprouting, from what used to be irc, and other internet chatrooms, the activities now became less and less idle banter, and projects started popping up. Open Source projects are just one catergory that has taken off. Social networking sites changed the way information was spread. For the first time, "word of mouth" no longer held its literal meaning, and had no limit on geography or timezones. Sharing a piece of information had never been so easy, so effective, so fast. New marketing strategies have even been developed for making use of the inter-connectedness of our people (this is btw known as viral marketing)
All information containing material, from music CDs, tapes, books, and even photos have now found less and less use, as everything ends up consolidated on two major forms: magnetic disc media, and solid state flash media. Not only that, but all are linked, and made accessible from most parts of the globe with a dense population.
Making money has found a new way: selling information. Before this, selling information had never been so profitable, and on such a large scale. Books always required printing, ink and paper costs, labour, transportation. CDs required to be molded, etched, housed, and transported. All information containing material experienced roughly the same problems, as well as degradation. Now the containing materials take on different forms, all to the choice of the consumer, be it a PC, an e-book reader, tablet PC, laptop, etc. Businesses need not bother about anything physical anymore (almost. Except the servers and computers which they run their business on, but hey, one computer can do waaay more things than any other single object you can think of).
People now turn to the internet for answers (for practically anything. I'd bet very high that anything you can think of, in terms of questions, has been googled in one form of phrasing or another by now). Our inter-connectedness gives us the access to the information of mankind. Information is the buzz now. It's what that is moving around the world, and moves the world. And yes, there's much money to be made from something as non-physical as this. Welcome to the information age! But let's not stop here, we've only just begun...