All the content of this EDM/2 wiki are released under the Creative Commons Attribution-ShareAlike 3.0 license.
If you submit your work to EDM/2 you accept this license.
The Classic EDM/2 (old EDM/2 site) articles were written under the following license:
All article content is copyrighted by the original author. All content on this web site not covered by the previous statement is copyrighted by the publisher. No part of this magazine may be reproduced without permission from the original author. This publication may be freely distributed in electronic form provided that all parts are present in their original unmodified form. A reasonable fee may be charged for the physical act of distribution. No fee may be charged for the publication itself.
This is quite fine but unfortunately it makes it very hard to extend texts at a later stage or use parts of it for another article (create derivative work). As you can imagine it gets also practically impossible to get the permission from the authors for using the work at a later stage because the listed email address does not work anymore after some years, at least most of the time.
Because of this we decided to use one of the Creative Commons licenses for the new articles at EDM/2, in fact it's the Attribution-ShareAlike 2.0 license. This license makes it possible to use the existing text as long as credits for the original author(s) are given. Please refer to the license itself for detailed information.
If you have any questions about this you might post a message on the Mailinglist.