On one of my web sites I removed the underline feature for links so that the links to other pages just appear as plain text until you move the mouse over the text and the hand icon appears.

Somebody now pointed out that users might not realize that they are meant to be links and therefore would not even try to click on the links or move the mouse over those links at all and that I therefore miss out on traffic. As I have these not-underlined links on parts like "About us" or "order now" I think it is obvious that those are links to other pages.

What do you think about that?