The Ketogenic Diet 101: A Detailed Beginner’s Guide
https://authoritynutrition.com/ketogenic-diet-101/

The Ketogenic Diet – An Overview
http://health-matrix.net/2013/08/09/the-ketogenic-diet-an-overview/#more-797

The Paleo vs Ketogenic Diet
http://www.ketothrive.com/nutrition/the-paleo-vs-ketogenic-diet/#more-262k

Ketone Metabolism, The KLCHF Diet, & Bonus Topics
https://ketogenicdiabeticathlete.wordpress.com/2015/12/12/11-ketone-metabolism-the-klchf-diet-bonus-topics/

Long-term effects of a ketogenic diet in obese patients
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716748/

Keto Diet Foods : Approved And Not Approved 
http://www.medblog.us/2017/05/09/keto-diet-foods-approved-and-not-approved-foods-for-year-2017/

Complete Keto Diet Food List: What to Eat and Avoid
https://ketodietapp.com/Blog/post/2015/01/03/Keto-Diet-Food-List-What-to-Eat-and-Avoid

What is a Keto Diet?
https://www.ruled.me/guide-keto-diet/

The Ketogenic Diet: An Ultimate Guide to Keto
http://nutritionadvance.com/ketogenic-diet-ultimate-guide-to-keto/

The Anatomy of a Keto Diet That Gets Results
https://ketogeniclab.com/how-to-start-a-ketogenic-diet/

Ketogenic Diet for Diabetes: Recent Research Shows Good Results
http://www.pharmacytimes.com/resource-centers/diabetes/ketogenic-diet-for-diabetes-recent-research-shows-good-results

Vegan Keto Food List for Optimal Nutrition
http://herbivorepost.com/vegan-keto-food-list/

See also:
What Is a Keto Diet? [blog post]
Ketosis and Ketogenic Diet