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Mustafa Uysal

AppThemes

On a multisite installation, the admin bar has a menu item called My Sites.
If you’re not a big fan of the admin bar on the front-end, try this widget instead. If the user is not logged in, he won’t see the widget at all.

My Sites Widget

A widget that displays a list of sites that the current user has access to.

Joshua Parker

Plugin allows a super admin to put his/her entire network, main site, or subsites into maintenance mode.

WPMS Site Maintenance Mode

Provides an interface to make a WPMS network unavailable to everyone during maintenance, except the admin.

My Sites Widget vs WPMS Site Maintenance Mode