A feature of WP 3.0 and later versions that allows multiple virtual sites to share a single installation.
WP Multisite enables multiple websites to be powered off a single install. This opens plenty of new possibilitie for developers and companies to create larger websites, enterprise level solutions, or just for logically organizing a website’s content and dividing tasks. According to the codex:
OUsing a Multi Site installation will add the ability of running multiple sites with a single install of WP. This set-up is great for creating a network of sites with easy administration of each individual website. All sites can share the same plugins and theme, making the update process easy and flawless. This workflow works great for large organizations running multiple sites under the same brand. The Multi site setup is almost exactly the same as updating any site.e same as updating any site.
All of your network’s themes and plugins are stored just once, no matter how many sites you use them on, meaning you’ll be using significantly less server space than if you used a separate installation for each site.
All sites can be managed from a single dashboard. Multi site is great option for freelancers, businesses and organizations that manage multiple websites.You can make each subdomain use the same theme to enforce standards and unity; such as a car dealership affiliate or franchise business owner. Whether you’re a freelancer developer or web designer who wants to provide hosting and maintenance to clients, a college organization looking to centralize the management of your websites, or a large news publisher trying to isolate sites for different departments, multi site is the answer.
With a WordPress multi site setup you
can update all your plugins and themes from a
single location, reducing development and
Easy Web Creation
Create additional sites in minutes.New sites
can share the same functionality and layout
or can be customized to meet additional
Super Admin Powers
Administrators with the right access
permissions have the ability to set up new
sites when they need them, without relying
on a potential bottleneck in the IT department.