Hi Chris, "Good content" means a couple of things - good for readers and good for Google. Good content for readers means that the content answers questions, provides value, offers solutions, and is engaging. You want to keep the reader on the page and on your website for as long as possible. To make good content for Google, you have to provide the search engine with a set of signals - e.g., keywords, backlinks, low bounce rates, etc... The idea is that if you make good content for readers (engaging, valuable, actionable, and informative), your content will get more engagement. When your content gets more engagement Google will see it as good content too and put it higher in the SERPs. Making "good content" is about striking that balance. Let us know if that answered your question!
Visual content plays a big role in the success of a content marketing strategy. We've found that The Adobe Creative Suite will set content marketers up with everything they need to lay out ebooks, design infographics, create social images, etc. The team will find themselves in InDesign, Photoshop, Illustrator, and Acrobat pretty frequently. For a free alternative, try Canva. This lightweight software makes it easy for designers of all levels to create quality visual content -- things like presentations, cover photos, ads etc. 

There are a host of metrics to look at when you have a robust analytics solution, but having too many goals to live up to tends to result in prioritization difficulties. I recommend content marketing teams have 2-3 metrics they measure, and perhaps some secondary metrics each sub-team can measure to help understand when there are different levers to pull. Here are my recommendations:

The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.

Webpages. What’s the difference between a normal webpage and a webpage that is content marketing? Consider The Beginner’s Guide to SEO from Moz, a provider of SEO related tools and resources. This resource, offered for free, has been viewed millions of times, bringing in countless customers who otherwise might never have stumbled across Moz and the services they offer. Or take a look at a case study from the design firm Teehan+Lax. Most case studies are boring. Their case studies are fascinating. That’s the difference between simply putting content on your website, and content marketing.
Webpages. What’s the difference between a normal webpage and a webpage that is content marketing? Consider The Beginner’s Guide to SEO from Moz, a provider of SEO related tools and resources. This resource, offered for free, has been viewed millions of times, bringing in countless customers who otherwise might never have stumbled across Moz and the services they offer. Or take a look at a case study from the design firm Teehan+Lax. Most case studies are boring. Their case studies are fascinating. That’s the difference between simply putting content on your website, and content marketing.
If you’ve ever slogged your way through reading a piece of marketing and only finished reading because you had to, then you’ve experienced bad content marketing. When I speak to companies about content marketing I tell them that content is good if they genuinely want to read it. Content is great if they’re willing to pay to read it. If you want to see great examples of content, just look at what you’ve paid to read, watch, or listen to lately. If you watched The Lego Movie this year, you saw one of the greatest examples of content marketing to date. Oh, you thought they made that movie in order to sell movie tickets? Think again. That was a 100 minute toy commercial, and rather than using a DVR to skip it you paid good money to watch it. Is it any coincidence that Lego recently leapfrogged Mattel, the creators of Barbie, to become the largest toy company in the world? You may not have the budget to make a feature film to promote your company, but you can still give potential customers valuable information.
Traditional marketers have long used content to disseminate information about a brand and build a brand's reputation. Taking advantage of technological advances in transportation and communication, business owners started to apply content marketing techniques in the late 19th century. They also attempted to build connections with their customers. For example: 
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