This topic is how to make transparent watermarks...I didn't find out until someone told me, so I thought some other people might want to know as well. ^^
Ever since I've known how to do them, I have been using them. (Of course I mean digital watermarks)
This tutorial is done using Photoshop CS2, so it may not work the same way or work at all with a different program.
Step One :

Step Two :
[img]
http://fc05.deviantart.com/fs31/f/2008/ ... ornado.png[/img]
Tips :
-Remember to always put your watermark's layer at the top so it will cover your artwork
-Use a different colour for your watermark than your art work
Ex : If your artwork has mainly dark colours, use a lighter one for you your watermark. If your artwork is mainly of light colours, use a darker one for your watermark
-Try to use the same name in all your watermarks, its less confusing this way
I hope this helps !=)