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Enable iTunes sharing...anyone on your local network can access your library to listen.
 
Since it is not legal for them to download them from you as it stands, I'm sure you're implying that others use software such as OurTunes to download your songs and you are looking for a way to share your songs that will not let them download them with a third party application? If that's what you want, I don't have an answer unfortunately. When you share your music, other applications simply share the songs in the same way but actually save it.
 
If people want to use Ourtunes to download songs let them, it isn't possible from within iTunes anyway. It is them doing the pirating not you, since Ourtunes hasn't been updated since 2004, Apple hardly care either, as otherwise they'd have stopped it working properly by now.
 
If people want to use Ourtunes to download songs let them, it isn't possible from within iTunes anyway. It is them doing the pirating not you, since Ourtunes hasn't been updated since 2004, Apple hardly care either, as otherwise they'd have stopped it working properly by now.

Maybe they do care, as OurTunes doesn't work on iTunes 7.
 
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