Some people use their web browser for man pages.
TkMan is written specifically for man pages and with its additional knowledge of the domain can do a better job. TkMan provides an extremely pleasant GUI for browsing man pages. I cannot describe all the nice features of TkMan in this small space. Instead I will merely say that I now actually look forward to reading man pages as long as I can do it with TkMan. Further, one may highlight, as if with a yellow marker, arbitrary passages of text in man pages and subsequently jump directly to these passages by selecting an identifying excerpt from a pulldown menu.