The Ultimate AdWords Resource Guide!

Best Getting-Started Guide:

Perry Marshall's The Definitive Guide to AdWords

Okay, this is a standard recommendation. But Perry, and his right-hand man Bryan Todd, have put together a great guide.

First of all the guide gives a great introduction to AdWords. But it also gets you in the mindset of playing the AdWords game to win.

You structure your adgroups to do laser-focused groups of keywords, and your ads speak to that focus.

They also point out that to not be doing split-testing of your ads is leaving money on the table. I couldn't agree more.

Anyway, lot's of good stuff.

If you're whining about not getting going at all with AdWords, it means you probably don't have this guide. Or else you have it and haven't really started putting things in practice.

Get more information on the Definitive Guide

Best Intermediate AdWords Course:

AdWords Killer

Best Advanced AdWords Course:

AdWords Profit Secrets

Best Course on Content Targeting and Site Targeting:

Okay, hopefully I'm not getting myself in trouble here.

The thing is that the author of the guide, Ian Rollinson, doesn't say "Site Targeting" in his salesletter.
But I feel I'm serving in his interests, and yours, by saying that the big value of AdWords 180 is that it's about how to stop playing a "sucker's game" (I know I have myself) with Content Targeting.

You can be a lot smarter, and get a lot better ROI, if you know the secrets to doing Site Targeting. And then move from throwing money away on Content Targeting, and making better profits from laser-focused Site Targeting

Now it only applies to niches where you can find sites with good Adsense ads, to target. But that's true with Content Targeting too.

And I'd say it works for the majority of niches out there. If your niche has good content sites out there, with Adsense on them, then you'll get great value from these secrets on Site Targeting.
So if you have a niche that has viable content sites with Adsense, this guide gives you the path to find what sites to target and how to target them effectively.

He has one powerful technique that's so counter-intuitive that you would almost certainly miss it on your own.

Bottom line:

Actually a lot of AdWords guides tend to be geared toward affiliate marketing. For example, "Google Cash" should really be called "Using Google AdWords to make money as an affiliate" - but of course that's not as catchy.
 
The author of Day Job Killer (I'll just call it "DJK" from here on), Chris McNeeney, has done a whole series of guides on AdWords for affiliate marketing (with some token mention of expanding into selling your own products). You can get value from each one, individually, but Day Job Killer is the best overall, in my opinion.
 
For one thing, it does a great job of keeping you within "what works". So you don't spend a lot of money on broad keywords, before finding they don't covert.
 
And also how to effectively pick good products to promote.
 
An example of a "bit" from DJK that I liked, is where he talks about ad differentiation.
 
So many people try to talk about finding "the one" ad type that works. But as Chris points out, you also have to look at the competition. To me this is Business 101, applied to AdWords advertising. But a lot of people miss it. You need to think how your ad will stand out. Maybe you emphasize a different benefit. Or add a benefit that someone else doesn't have. For example, if there's free shipping, and other ads don't show that - then put it in your ad.
 
There are a number of such great things in this guide.
And it's also about taking you step-by-step so that you can quickly take action.
 
As someone who also conveys Adwords techniques and "processes" to follow, I can tell you it's not easy to give step-by-step formulas. Chris does a great job of doing that, for the techniques that he lays out.

Bottom line:

Google Cash - 3rd Edition