Previously when created unlimited blogs on one installation we could use WordPress MU (also known as WordPress Multiuser and WPMU). WordPress and WordPress MU have now merged and this allows us to custom develop sites using a WordPress multisite network. By doing this we get a group of blogs or websites that are grouped together. For the site owner who wants to own several sites the advantage will be that they can all be managed by login to only one control panel. Also if plugins require updating you don’t have to do the updates separately. This site is an example of WordPress web development with is a CMS web design and a mobile or responsive web design.