When you write a post to a message board, bulletin board or forum, most good systems allow you to have a signature on your every one of your posts. You can write a question, or answer a question on the forum and your signature appears just below what you added to the conversation.

There is one thing different about links in your forum signatures that sets them apart from links on other sites. It is not:

* Directly related to how the search engine sees the link
* The size of the link
* The text of the link

or any other linking technique. It comes down to the fact that forum signature links are editable.