Multiply is a plugin for WordPress 1.5.x which allows multiple blogs from within the one administration interface. Includes one-click creation of new
You can transform a default, single weblog WordPress installation into a multi-blog site with the help of PostGroups.
Sick and tired of maintaining several blog installations? Want one WordPress installation to rule them all? Try this plugin.
The plugin allows you to support your wordpress users from directly on your dashboard. This plugin works with wordpress multiblogs.
QRCodes add images that visitor can flash with their favorites applications. Choose where to display and when (ex: only on printed page).