Integrate Google Optimize
Make this available to customers: https://www.google.com/analytics/optimize/
So we can run a/b tests on campaign pages, donation forms, thank you pages etc. It's already integrated with google analytics.
Comparison Charts are best to use when you are looking for something specific, say in case you need to buy something, this chart will help you look at their advantages, disadvantages, prices, reviews, features, etc. Thus, making it easier to choose between them easily. Read more here
SEO itself tells us how it acts like a catalyst for any business website or enterprise which is why even I am taking help of Google Adwords Management for promoting my business online. I got to know about more techniques and managements on http://visiblefactors.com/ppc-sem-campaign-management/ and I can see my business growing extensively already.