Free: Most of the information online is free. Sometimes payment is required (for some journals, magazines, etc.). Regardless, the internet makes for a relatively free learning system.

Available 24/7: There is no opening or closing time. Use the web according to your schedule and personal bouts of inspiration.

Ubiquitous: Utilize this learning system anywhere in the world with an internet connection (which is, alas, not always free). But if you can access the internet for free from a McDonald’s in a third-world country, you can be sure the burgeoning amounts of free internet spots worldwide will eventually reach even Antarctica.

All-encompassing: There are still documents unavailable online, e.g. a few ancient religious texts, but just you wait. The internet is becoming the most comprehensive learning system in history.