An article on cyclic developments in Horror genre - Read, digest and regurgitate in the exam and you'll secure a great grade!
This is such an amazing Horror site with some brilliant links. Check out each decade to see important genre developments:
Great article about revival of the Horror genre in 1999
Copy-cat killings inspired by Horror films:
Now for some fun - The M&M Dark Horror Movie Game in poster form above available as an interactive version: