Manpower is a Mac OS X graphical user interface to the main system of Unix software documentation, the man page. Man pages are concise but thorough descriptions of the functionality and methods of the various Unix command-line programs; there may be hundreds of such programs installed on a Unix or Linux system. Man pages are typically accessed in the Unix terminal by typing the phrase "man program," with "program" being the specific name of the Unix tool you are trying to learn more about.
While accessing the man page system in this manner is efficient, it has limitations. It is difficult to read documentation in the Unix console; the type is usually very small, and can only be read one screen at a time, making scrolling and skimming through the material a tedious process. Manpower provides a simple, elegant three-pane interface that makes reading man pages as easy as reading e-mail.
Manpower compared to Terminal and other man page viewers:
Clean, three-pane interface: Reading man pages is as easy as reading e-mail.
Search, browse, display, and save new man pages in a single window.
GAOSHAN Whenever I see a for pay application that has a solid, free alternative I feel like I should point out the alternative. If you need a man viewer this app may be perfect but you also owe it to yourself to check out the free ManOpen ( http://www.macupdate.com/info.php/id/6408/manopen ) (Version 1.0)
PSYCHOS Getting tired of posting comments on this obviously greedy developer's "tools."
Enough people have posted how to do this for free, in less time than it would take you to even read this page. Man pages for pretty much all of these tools are on the web, as well. (Version 3.0)
IGAUCHO I've tried out VuMan (which is now open source) by this developer and this is certainly better. At least it has an uncluttered UI and it does just what it says. Very simple and it allows you to save man pages. I really can't see too many people shelling out $20 for man page viewer when there are better alternatives. Sorry, there's just nothing groundbreaking here. (Version 1.0)