You could do with some more categories. I couldn't, for example, find a place for my site. When all the text is the same size and font, it's hard to focus on any particular text. I found it difficult to know just what I was looking at in each category. Why do you have an empty feature section? I suggest you either put something in it, or remove it. It looks neglected.
I don't like they way you show the search results. Looks unprofessional IMHO. You might also check your server speed...it's slow loading over here..
Try to put subcategories with smaller fonts for categories and you can try to put the number of sites in those categories visible. Same to the search result. description of the size could be smaller and that way more search results could fit on the page. Or differentiate with colors between the title of the page and description. Os hard to follow the search result right now