Recently, CommonPlaces presented a conference on 'Reduce the Cost of Each New Website With Drupal Multi-Site"

Drupal’s elegant multi-site capabilities give businesses a repeatable framework on which to run many websites from a single installation of Drupal—enabling centralized system management while reducing the incremental cost of additional websites to almost zero. The benefits of multi-site include streamlined maintenance, lower operational costs, and the ability to target market segments in a more controlled way.

To successfully implement a multi-site installation, a business must also be aware of caveats and changes that may be required to their deployment model. If you are looking for a cost effective way to manage multiple websites, Multisites are what you are looking for.

To successfully implement a multi-site installation, a business must also be aware of caveats and changes that may be required to their deployment model.

• Identify where a multi-site installation is appropriate and where it is not.
• What are the benefits of using such a system?
• What are the caveats that must be addressed for a successful implementation?
• Multi-site handling search, e-commerce, user registration, and profiles
• Planning a successful multi-site.
• Examining a case study of a successful multi-site.
• Recommended solutions and services for operating successful multi-site Drupal installations.

More information: http://acquia.com