Cross-Overs  Harry Potter and various fandoms. Buffy, Charmed, X-men, etc. Has to have at least one Harry Potter Character in order to be accepted.
Post Hogwarts  This is for stories that take place after Hogwarts. I.E. After the War, After the Mauraders leave school etc.
Dominus Heros  Stories Featuring the Paring of Severus Snape and Harry Potter. Including any time period.
Preteritus Vices  Join us in the Past. This category features the Marauders Era, and any story based in the past.
Hogwarts  This category is for stories that focus at Hogwarts. This could be teachers relationships, Harry/Gang's relationships, etc.
Total Alternate Reality  Total Alternate Reality. These stories are a total re-write of the books. I.E. Harry got sorted into Slytherin, etc.