How can I crosslink my web sites

[Sebastien]

I would like to put up new web sites, all with different content but related. How do I cross link them without hearting anything?

[ciml]

The recent Cross linking without duplicate content [webmasterworld.com] thread should help, and part of the Subdomain advice [webmasterworld.com] thread might be of interest.

The one thing I can say for sure is that we don't all agree on this yet.