It depends on what you want to do with the content you've created.

Do you want others to be able to reproduce and distribute the articles freely, or do you want to retain control over how they are used?

When you create and publish the articles you automatically have certain rights that give you control over how works are used - this is copyright.

If you want to allow everyone to be able to take your works and reproduce them freely, then the GNU licensing could be the way to go. You don't even have to go that far though, under the articles just put something along the lines of, "These articles may be reproduced freely and without permission."

Syzygy

can you share some more details about this project of yours?

The project is about one specific genre of electronic dance music. The website is basically a social network where fans of that music can create profiles (like myspace), add artists to their "favorite artist list", create buddylists, comment on any article on website, talk in forums, write blogs, upload photos etc...

btw I don't want to do anything with my content... I cannot retain control over the text as I decided to mostly just copy and paste info about artists from their myspace presentations. At the end of each article I put "More info" links (usually their link to their official www, link to their myspace and some other link maybe). Why am I just copying and not write my articles about artists? Because that's the info you can find anywhere online, those are all biographies... and I want to concentrate more on developing cool features for this social network.

btw is that a good option, to have a couple of outbound links on every article page? Will that affect my pages' PR? My site is basically new and have no PR created yet.

Any info would be appreciated, thanks.