Sarcastic disclaimer: I am not backing my statements with facts. I think infinite scrolling websites are already a fact against themselves.

- They might be visually appealing (sometimes) but they are against usability, load and usefulness in general.

- Not even Pinterest (one of the most famous infinite scrollers advocates) allows you to go back to your scrolling level if you refresh.

- They are annoying. Their format fits mostly mobile devices where knowing where you are in a page is perceived differently (and sometimes totally not important).

- Fitting analytics (that make some sense) on infinite scrollers is another pain.

- If I am using a website for anything different from leisure, I want to use its content as a reference for something I need to share or use later.

- They were already despised in 2013: http://www.smashingmagazine.com/2013/05/03/infinite-scrolling-lets-get-to-the-bottom-of-this/

- They got XKCDed: https://xkcd.com/1309/

Even Google didn't like them, then got used to them: http://www.zdnet.com/article/google-tries-to-save-the-web-from-the-curse-of-infinite-scrolling/

Other sources http://www.nngroup.com/articles/infinite-scrolling/ http://www.sitepoint.com/ux-infinite-scroll-good-bad-maybe/ http://designmodo.com/infinite-scrolling/ https://econsultancy.com/blog/61703-infinite-scrolling-pros-and-cons/ https://www.linkedin.com/pulse/20140626160300-5182010-bad-website-bad-infinite-scrolling-pages https://www.quora.com/Is-infinite-scroll-and-parallax-design-good-or-bad-for-conversions-for-single-product-sites

- The only funny source: http://whitemenwearinggoogleglass.tumblr.com/

EDIT: improved readability