I like that your site is simple. It gets right to showing you the sites which is nice.
Everything seemed to work fine. I did not have any trouble.
I think your site is a little too bland. It really would not be a terrible design except that you're showcasing well-designed sites and well, it makes me look at yours and say, "Is this one nice?" Obviously, you can't go crazy like the sites you're showing, but it could be spruced up a bit.
I thought the categories could use a small description. I know they're pretty self-explanatory, but it seemed lacking.
I think your site needs something more. Just finding and showing off nice sites is okay, but for me, it would not be enough to make me come back. Add something of your own. Tips, tutorials, articles, commentary, that kind of thing. I would be interested in stories about the history of web design, and the future of it.
Maybe have a bad design category, too, because those are funny.
