Thanks to Matija and Goran, my coworkers (yes, it was a joint effort, don't ask), I now have a GMail account. You can help me test it by sending me your mail on andrej.tozon at gmail.com. While I wait to get some invites to give away, I would want to follow this lead.
I also signed up for Google AdSense program and added some ad space to my blog. Just to see how this works out
Having said that... I google a lot. Mostly for information, but there's more to it. Google's calculator not only performs advanced mathematical calculations, but is also a measure unit converter. To convert a person's height to centimeters simply enter this in the search field: 5.9 feet in cm and you'll get the result. Needless to say, I don't use the Windows calculator anymore.
Another Google's best is the Definitions. Type define: programming in the search box and you will get back various definitions from various dictionaries available on the web.
More Google tools on this page.