If you are using Google Calendar regularly you might find this little Firefox tip interesting. It is possible to display your current and upcoming events that you added to Google Calendar in the Firefox sidebar. This is actually pretty easy to accomplish.

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A friend of mine is still using Outlook at home and I was wondering why he did not switch to a more secure email client such as Thunderbird. His response was that Thunderbird was missing a calendar and that this was a feature that he needed. I could not deny that there was no calendar in Thunderbird - until I found the Thunderbird extension Lightning. Lightning which is still in development adds calendar functionality (scheduling, tasks..) to Thunderbird.

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The free transparent customizable calendar called Rainlendar is a great addition to every windows system. Rainlendar is a lightweight open source application which supports lots of languages (must be 30+). It displays three independent transparent windows on your desktop, the calendar showing the actual month, a todo list and an events list. You can add or edit entries by doubleclicking the window.

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