Itqualityassurance
How do you make something not look clickable?
You can use a lighter font so it's distinct from the actual content. Here's a version w/ lighter and tucked completely into the corner, and one where you don't put any borders, just a simple gray text. These are great options. I recommend number 1, as it is the most obvious, and does not looks like a button or a link.
How do you make a link obvious?
Shades of blue provide the strongest signal for links, but other colors work almost as well. As always, when using color to signal information, you should provide redundant cues for color-blind users. Making unvisited links brighter and more luminous than visited links will usually accomplish this goal.
