Cross linking refers to the process of linking between two sites. Whether or not they are owned by the same person, cross linking is the process on which the internet is built. It allows users to reference sites with content similar to that which they are already viewing, and may be of further interest to them.

Side by side (lateral) linking in which two or more adjacent molecules of a polymer join to form a bigger molecule. Cross-linking makes a polymer harder and raises its melting point.

cross linking is linking between 2 websites.