Watermarks
 

my own watermarks(f.e. my domain name) on a pics content it's ok? or clean content better for LLs?

Fine with me just don't make it huge or put it in the middle of the pic or anything like that. :)

Pretty much what Cleo said...keep it near the edge on the BG of the pic is fine :)

What utility could you recomend to do batch watermarks ?

If you use content you have bought exclusive or non-exclusive, I would even recommend to mark them to prevent them from getting stolen.
Thumbsplus has a marking function which you can use in a batch as well.
Photoshop does it as well, but I find thumbsplus easier and faster to set up the batch.
If you need any help with it, let me know.

what's a watermark?

Basically any mark on the picture which states the site name/URL or something similar. The name "watermark" is a bit missleading since it's derived from it's original use in papermaking... You know: the more expensive paper which has an almost invisible mark which you can only see when you hold the paper against the light - that was done with a special stamp integrated in the paper mesh (where the pulp's pressed and dried).

Rejections for Watermarks: no, I can't think of any time (submissions, etc.) I had any problems with marking my pictures, and I believe I was one of the first sites to put my domain name onto all pictures - back in 1997!
Partly to get traffic, partly to protect content, partly to build a name for my site.

Though - my mark is rather small(-ish).


There's a really good German (but in English) freeware program which does batch processing and and semi-transparent watermarks, but I can't remember the name or URL (try a Google search).