Virto Ajax Calendar is a web part calendar for SharePoint. It's built for displaying events collected from any SharePoint List on a single calendar view.

Virto Calendar is designed for SharePoint Release 3 and built on Microsoft .NET Framework 3.5.

Virto Calendar can be used instead of built-in SharePoint Calendar. It provides you with powerful capabilities for more convenient events calendaring, e.g.:

• Event Coloring according to List Type;
• Adding Event with a one mouse click;
• Date Picker for quick and easy navigation;
• Event duration editing with a simple resizing action;
• Event date changing by drag and drop;
• Single aggregated view of all your events from different SharePoint Lists not only single SharePoint Site;
• Resizing for fitting your web page design;
• Printing of any calendar view.

Virto Calendar has a Google Style View and more views are coming in the nearest feature.
It is now provided in English and Russian languages.