Here are some links to other UFO sites on the WWW 

MUFON (Mutual UFO Network) 

BUFORA (British UFO Research Association) 

Budd Hopkins web sit 
(Bestselling author of: INTRUDERS & WITNESS) 

Area 51 Research Center web site 

Malta UFO Research 

The Enterprise Mission 

Art Bell 

The Nation UFO Reporting Center 

Alien UFOs, Mysteries & Phenomena 

Other interesting sites to visit  

NASA home page 

JPL (Jet Propulsion Laboratory) 

ASTRONOMY Magazine 

Mars Pathfinder 

Mars Global Surveyor 

Graham Hancock (Bestseller - fingerprints of the gods)