Web Notify Service
Tools and Technologies Used: Visual Studio .NET 2005, SQL Server 2000, Microsoft Windows Communication Foundation
WebNotify was aimed to notify users whenever there is an event for them. So for example, user placed some ticket to customer support and when customer support reply to that ticket, a Windows Live Messenger style popup will appear on the user's system telling notifying about the ticket change.
This is actually a more general solution divided into three layers. Administration portion, Service itself and the client. Admin, from a web page, can list all connected users and select one or more of them to send a message and that message will instantly appear on user machine.