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Here are some others:
1) Make the links very tiny, like by using a period as the link text.
2) Use CSS to make the link text appear not to be linked
3) put the links in a div that is z-indexed behind another div
4) put the links in a div with its display property set to none
5) Use javascript to make nothing happen when a link is clicked. Works well with strategy #2
That of course is not a complete list. There are probably a lot of ways you could accomplish this. Some techniques are more dangerous than others, and some are more effective than others.