Image Resolution Irrelevant for Web Display

I often see tutorials on the web about proper image resizing for the web, I actually found a few when looking for info related to my previous post on image compression.  All of these tutorials preach the ’72 ppi’ mantra saying that computer monitors can’t display more than 72 ppi so setting this higher creates bigger images and is wasteful.  I’m not sure where this all started, but it’s nonsense.  This page has some useful info and worth a read for another explanation.  What I’ll demonstrate here is how this setting has absolutely no influence on images displayed in your browser.  This ppi (pixels per...