sven1977 - 12:32 am on Jun 2, 2008 (gmt 0)

Thanks a lot for your helpful answers. I'll definitely try the NOARCHIVE tag. I think google already allows webmasters to let the google bot into restricted areas by providing a username and login. However I think I'll simply do it via a simple IP check as one of you suggested.

I'll also provide a preview area, where users can see what the content round about looks like (e.g. abstracts, but no pictures, etc...).