[DesScorp]

"such as?"

Gmail, Google Talk, Google Maps, Blogger, Google Calender, Picasa...the list goes on. Their toolbar for IE is the best for that browser, their customized homepages beat the crap out of anything MSN or Yahoo can do, their usenet web interface (Google Groups) is a Godsend if you need to scan newsgroups. And face it, they still have the best search engine in the business.

[killjoy]

Gmail, Google Talk, Google Maps, Blogger, Google Calender, Picasa...the list goes on.

You didn't mention Google Analytics which is one of the best things that ever happened to web developers and webmasters.

The ability to do conversions and math on google is also a godsend. If you have never used it, try typing, "1 meter in nautical miles" or "sin 54 * 4" into google. It will automatically do the calculations for you. Incredibly useful.