hey,
visually your site is well executed. i like your logo and header and the page flows well.
one thing that you might want to change is the value of the color that you use to list traits of each category (or listing in the category pages). the value is too low to really pick up off of the black. maybe #CCCCCC would be better. that way the white is still the dominant color and the user can read the text next to the links.
also, since you use white as the base color for text, it's difficult to tell links from text. especially in the 'tools' portion of each listing. maybe a quick solution would be to change the links to the green that you use in the logo and throughout the site for your links.
all in all you've made a nice little site for yourself and you have reason to have a pint in celebration (if you are of drinking age, in which case some chocolate milk wouldn't be too bad either)
Wow, amazing site i wish i could make them as good, i really like the colour scheme that lime colour really sticks out and looks good against the black and white. Can't really think of anything to wrong at all the only thing i can think of is that space underneath the directory, is it reserved for ads ? if not perhaps something to think about