Selling on the Web: How Long Should Your Marketing Copy Be?
http://www.bennaco.com/a031204.htm

Bennaco
2004

Abstract:

If you're selling on the web, you want marketing copy that will entice potential customers to buy. There are currently two schools of thought on effective marketing copy: one group advocates 'long, detailed, and chatty' copy, while the other favors copy that's 'short, objective, and to the point.' Which approach is right for you?