Streaming music service Rdio is now free on the Web, where it’s supported by ads. Featuring a library of 20 million tracks, Rdio lets you play whatever music you desire, or it can generate personalized “stations” like those of Pandora and iTunes Radio. Rdio Unlimited remains available for $9.99 per month, offering ad-free playback and use of the Rdio mobile app.follow link
Sleep (and Lock) Your Screen
When you are walking away from your computer, it's fairly common practice to start your screen saver and lock your screen. But did you know that there is a built-in keyboard shortcut in Mac OS X to sleep the screen?
Press Control-Shift-Eject and your monitor sleeps without engaging the screen saver.
Rdio Now Free on the Web