Where does it say that LimeWire is giving away free downloads of music?? Limewire does not give away any music, it is simply a client of the Gnutella network.

If you want to find out more information, try using the search button (top right, between faq & home) to look for topics such as "legality", "is LW legal" etc. You will find hundreds of threads addressing this topic.

For further information, you might like to try www.limewire.com or Google.