Here are some of the many Predator,Alien,AVP fansites out that you might wanna have a look at.
A brilliant site with lots of images and info.Also contains reviews on the comics and games released.Check
A well presented site with lots of fan ficition and drawings.Also contains useful info and some rare images.
Another well presented site with rare images and fan fiction.Has useful info and has reviews on Predator
games and an interview with the game developer.