This plugin allows you to easily manage roles within your site. http://wordpress.org/plugins/wpfront-user-role-editor/
This plugin allows the visitor to easily scroll back to the top of the page. http://wordpress.org/plugins/wpfront-scroll-top/
WPFront Notification Bar just went live on wordpress.org Visit http://wordpress.org/plugins/wpfront-notification-bar/
I just submitted my plugin to wordpress.org, there are 36 other plugins ahead of mine waiting for review. You can download it from plugin page.