http://basecamphq.com - I like this it is simple - clear call to action, good focus on customers, case studies, logos, and good use of screenshot demos.
Descripciones de páginas
* Demonstrate product: Video / Images (screen shots)
* Build trust with testimonials, quotes, logos...
* Call to action (Free Trial)
* Page can be long with a big footer with links
The goal is to get people to sign up for a free trial.