We've covered some nifty ways to load man pages from mankier.com in your browser, and some alternative online man page resources. We've also covered some ways of loading local man pages in your browser. These local man pages will generally cover all available commands on your system, and will match the exact version of the command you want to run. So why would you ever use online versions of man pages?
Why use mankier.com? Here's why:
Quick overview of sections, links to sections
easier on the eye
Browser and terminal windows side by side. Handy to have man page in browser
When not to use online versions