Super Sidebar

• It comes with 45 default brand buttons. + Support to add new buttons.
• It comes with 20 default share services. + Support to add new services.
• It includes 2 default buttons with a special function: mailto and print.
• It has support for windows that open over the page. 
• It comes with 3 default examples: About, Contact and Newsletter.
• The buttons can be grouped in subbars that open on mouseover.
• It has support for Font Awesome which has over 670 icons available that can be used on buttons and customized with CSS. + Support for custom image icons.
• It uses Velocity which makes the animations fast and efficient.
• It has over 30 settings available that can be used to customize it in different ways.
• The buttons and labels can have 4 different shapes: square, round, rounded, rounded-out.
• The button labels have 7 animation effects: fade, slide-out, slide-out-fade, slide-in, slide-out-out, slide-in-in, none.
• The buttons can be connected to or separated from one another. The button labels can be connected to or separated from the buttons.
• The colors for each of the following can be controlled individually: button, button over, button icon, button icon over, label, label text, window header.
• It comes with 7 default colors: custom, blue, red, yellow, green, white, black. 
• + Any color can be added through the CSS code.
• The subbar can have 3 different positions: under, side and circular.
• The subbar buttons have 5 animation effects: fade, linear-fade, slide, linear-slide, none.
• It can be positioned on the left or right side of the page.
• It can be set to display only after the page has scrolled beyond a certain position.
• It can be set to automatically hide if the browser window is under a certain width.
• The properties of all the animations can be customized.
• Many other options and features.
• Continued support and updates.

Have a look over the preview page for yourself to see the example templates, default buttons and available settings.