simple Blog Directory

a blog directory users will submit their blogs -blog title -blog URL -blog description -blog category (in directory the position of blogs will be random . means if there are 100 blogs in a category then 1 page will show 10 blogs out of these 100 blogs chosen at random) after submitting users will link back to my website (optional) by any of these methods -text links -logo links -etc the number of unique visitors referred by these blogs will be counted on daily basis. the blog which will send maximum number of unique visitors to my website per day will be chosen as the "blog of the day" and will be displayed on the frontpage/homepage of my website. (i should be able to dismiss the blog shown on the homepage if it contains any illegal content. then automatically the second blog should take its place(which sent 2nd maximum number of unique visitors)) i haven't decided the operating system and database yet. note:-those ready made php link directories not allowed.