Urban Legends of the Job Search
http://sciencecareers.sciencemag.org/career_development/previous_issues/articles/3500/tooling_up_urban_legends_of_the_job_search

Jensen, David G.
Science
2005

Abstract:

While it is true that employers far prefer electronic submittals to paper CV's, if you rely exclusively on the 'net for your job search, it will tank. Here's the trap: It feels like you are really accomplishing something by filling out online job applications, with very little risk. But you are just scattering seeds, few of which are likely to grow. While there is the possibility that someone will look at that package you've attached and call you for an interview, a great deal of your time is wasted.