I’ll try to mention a few of the benefits and ability installation of WordPress 3.0 with support for Multi-Site (MS).

Advantages:

• Possibility of updating multiple pages / plug-ins in one administration panel. Thus we avoid having to repeatedly log on and solve any problems in only one place for many pages.
• Extensive configuration, either globally to all pages (default setting) or each party separately.
• Creation of additional pages is simple and automatic.

Ability:

• Independently activating plug-ins for the various sites.
• Limit disk space and file sizes that can be sent to each site.
• Limiting the type (extension) and the size of files that can be placed on each page.
• Set different languages for different pages.
• Managing users, such as providing a single user access to edit multiple pages.
• Many authors can lead your personalized page, even without knowing that they are “on the same network.”
• Customize the admin pages.
• Forcing the action plug-ins, such as extortion or the caching of antispam filters.

Perhaps I failed to mention all the benefits that flow from the installation of WP 3.0 MS, but it is an interesting alternative to the holders of a wide network of sites.