Doesn't always have to be wikipedia...

Don't get me wrong, I'm a big fan of and occasional contributer to wikipedia. But when I stumbled across this, I was quite taken aback:

If you’re a Web publisher—a blogger, webmaster, or writer—you can get complimentary access to the complete Encyclopædia Britannica online. It’s a rich trove of reliable and high-quality information that you can use to check quick facts, research topics in depth, or just read to enjoy.

So, fellow bloggers or other web publisher, head over there and get your free account with the classic!