Virto Ajax SharePoint Web Part Calendar

Virto is color coded webpart Calenadar for SharePoint. It allows SharePoint users to view, edit and manage events from three distinctive data sources (SharePoint lists, SQL tables and Microsoft Exchange Calendar) in a single SharePoint calendar.Virto is provided with a number of new features including easy events creating with one mouse click, images and files preview, date picker, drag and drop for events creating and changing event duration.