I find the correlation between UI/UX and conversation rate very interesting. Based on my experience these blog posts are usually very popular. For example : where to locate call to action buttons, location of the title, number of screenshots, etc. I made several tests on my web site, changing the design and location of the social networks buttons. After all the changes I increased the click rate from 2% to 8%. I couldn't find any good posts or references about this topic.