Although widely known as an Internet searcher, Google offers a wide range of services, such as Gmail, Google+, Google Scholar, just a mention a few. GoogSysTray offers to integrate several Google notifications into one single application. This will help you avoid keeping track of many services, such as Google Voice, Gmail, Google Calendar, Google Reader, and Google Docs.
Although this may depend on your experience, this application lets you configure notifications from several Google accounts rather easily. You can select what services to activate for each of the accounts. After that, you may configure each of the services separately. In this respect, the program will let you set how often the service should be checked for new notifications, the key combinations you can use to access the service and even the software you wish to run in a notification event. Once configured, using GoogSysTray is as easy as pie.
The software is available in major languages and is compatible with the latest Windows version. In my opinion, supporting Google+ services could be a major addition to this application.