ArtfulBits Master Calendar enhances SharePoint calendar and provides "AJAX-like" functionality (drag and drop, edit, delete) and connection with Outlook, Google and SQL with multiple views: Gantt, day, week, month, quarter, year. Progress information for events is useful for any project management. Coloring and labeling events is a useful tool for event differentiation, and can also be used with different purposes. Each data sources can be restricted, so that only specific user or groups could have an access to it. Tooltip is fully customizable.