Re: Geico Commercial Song.
Limewire is actually great for music as long as you know how to use it. If you go around downloading "songs" that are 23 kB exe's, you're going to have some serious problems. Ares is better for more novice users IMO, but I have found it to be slower.
Torrents are designed for larger files, which makes them awesome for movies, whole CDs, games, etc. Demonoid is good, mininova is also probably one of the safest torrent sites.
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