Tasty Links allows you to have granular control over where your links show up.
To prevent certain sections of text from being linked with Tasty Links, go to the Text view of your post editor, then add
<!-- tasty-links-ignore --> at the beginning of the text you want to ignore, and
<!-- /tasty-links-ignore --> at the end.
You can add however many of these "ignore" sections to your post as you like.