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
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
Rdio Now Free on the Web