Cataloging journal articles and publications - a very difficult task. This is especially aware of the people leading journalism and scientific work. No wonder that to simplify this task really want to use a computer.

In part they have enough built-in OS X tools: search using Spotlight, viewing in a standard viewer ... But what to do when you have more? Comes to help a wonderful tool Papers.
Papers is an award-winning application developed for researchers to help you manage research material that you're passionate about. Let it take your personal library of research to a whole new level.
Papers for Mac:
Keeps your personal library of research organized and portable.
Automatically downloads full-text content for your articles.
Lets you discover papers to read from 25+ search engines!
Shows you related papers when reading.
Synchronizes your library between home and work much faster than before, whether you're using Papers for Mac, Papers 3 for Windows New, iPad or iPhone.
Papers Online New offers a convenient reading list and an easy way to shared collections of articles and more!
System requirements
Papers 3: (Mac OSX) Lion and above.
http://www.papersapp.com/mac