It's nearly impossible to overstate Google's place in our industry. The company touches just about every aspect of marketing. Name the channel, and Google is there. But while Google gets a lot of attention for the big things -- search, YouTube, etc. -- it flies somewhat under the radar when it comes to providing tools for marketers.
"It's almost like you have to know a guy to know [some of these tools] exist," says Joe Germscheid, director of consumer engagement at Carmichael Lynch. "They don't get talked about often, but they're good resources."
Some of the tools on this list may be entirely new to you. Others you've probably heard of, although you may not have used them in the way described. But as with anything Google, it's almost impossible to be totally comprehensive. There are just too many products. So if we've missed a Google tool you find essential, share it in the comments.