GMail and Google Calendar have quickly become one of the most popular mail and calendar applications on the Web because of its adaptability and accessibility. Both GMail and Calendar are easily accessible from all mobile devices. Gmail syncs to almost every portable device, provides IMAP and POP access, and can push email to Blackberries. When you reply or write to someone, GMail automatically adds that person as a contact. The integration of Google’s powerful search abilities and the easy addition of labels removes the need to file email like in Outlook.
Although GMail is a highly effective tool for managing communications, Google Calendar still needs further development. Calendar currently only syncs directly to Blackberry devices. In order to sync Calendar with other mobile devices, you first need to sync it with a desktop client like Outlook or Apple ICal, and then sync that application with your mobile device. No contact sync is available, and task integration is not built into Google Calendar.
The strength of Microsoft Outlook is that it provides a centralized location for your contacts, task and calendar management, and email. It allows you to write emails and work with your calendar and tasks even if you are offline. However, because Outlook indexes and stores everything on your computer, files can quickly grow to massive sizes that cause programs to freeze and your computer to slow down. Combined with the numerous functionalities and processes built into it, Outlook can quickly become a bloated application that takes over your computer.