Really great and free service where you can chat using a bunch of services like Skype or Google Talk within your web browser, meaning you don't need to install anything on your computer.
If you are more of a visual person and would like to organize your folders and files using different colors, than check it out how to use color labels in Mac OS X.
A stretched sheet of spandex acts as a membrane interface sensitive to depth that people can push into and create fire-like visuals and expressively play music.
