searchengineland.com/7-essential-google-analytics-reports-every-marketer-must-know-250412
—guide to useful analytics reports.
conversionxl.com/blog/12-google-analytics-custom-reports/
—examples of custom analytics reports, and the questions they can answer.
ga-dev-tools.appspot.com/campaign-url-builder/
—custom URL building tool for campaigns.
www.optimizely.com/optimization-glossary/ab-testing/
—A/B testing explanation and examples.
conversionxl.com/blog/ab-testing-guide/
—more A/B testing examples, including multivariate, and bandit testing.
firstround.com/review/the-tenets-of-a-b-testing-from-duolingos-master-growth-hacker/
—case study of A/B testing at Duolingo.
www.designforfounders.com/ab-testing-examples/
—more A/B testing examples.
optinmonster.com/8-ab-tests-to-run-on-your-popups-to-get-more-email-subscribers/
—tips for specific A/B tests.
—case study using Google Optimize to increase email conversion rate.