Where Can I Find Keyboard Reviews?

PhilLong asks: "I have a friend that is using an IBM keyboard from 5+ years back, the kind that didn't use rubber domes and had an emphatic "click" when used. I'd like to get him a new one so that he's not lost when the current one slips a key, and so he can use the ... ummm ... extra meta key. Where can I find such a keyboard, or more generally, where can I find keyboard reviews (subjective as I know they must be)?" Keyboard reviews? Now that's a neat idea...