Google Calendar has arrived and as usual is being written about all over the Web. Take the tour here.

One of its main features is Gmail integration: Gmail will recognize when messages include information about specific events. When you receive such emails, you can add them to Google Calendar with a click or two from the right of the Gmail page.

Michael Arrington of TechCrunch has given it a favorable first impressions review:

“My overall impression: Excellent. The ability to share via web publishing or RSS shows Google’s commitment to an open stardard. And this application is impressive in its speed and stability.”