Google's Gmail or Google Mail service - the name differs depending on when you created an account and which part of the world you are in - revolutionised web based email by offering ever-expanding storage space which means there is no need to delete emails. Features such as threaded conversations and checking of other email accounts have seen the service gain a huge following.
While you can use an email client to check your inbox for new messages, this almost defeats the purpose of using a web based email service. With many email client being slow and resource hungry, it is little surprise that many Google Mail users rely on frequent check of their inbox to see if new email has arrived.
Gmail Inbox Notifier is a small tool that sits in the system tray and periodically checks for the arrival of new messages, display an alert when one is received. Clicking the pop up that is displayed will transport you to your inbox ready to read the mail. You can choose who often the program should check for new messages, or opt to perform manual checks whenever you like.
The program can be configured to start automatically with Windows and the context menu of the system tray icon provides access to a number of Google related options. You can use the menu to compose a new message as well as accessing other Google services such as Reader and Calendar.
This is a tiny, lightweight program that uses very few system resources and is a great way to keep on top of your inbox.