The Academy of Natural Sciences: Giganotosaurus - Talks about the model skeleton on display at the museum and the predator in general. - http://www.ansp.org/museum/dinohall/giganotosaurus.php
Yahooligans! Science: Giganotosaurus - Basic facts about this dinosaur on a quick reference card. - http://yahooligans.yahoo.com/content/science/dinosaurs/dino_card/24.html#
The Dinosauricon: Giganotosaurus - Basic information along with photos and artist's drawings of the animal. - http://dino.lm.com/taxa/display.php?name=Giganotosaurus
Enchanted Learning: Giganotosaurus - Contains facts about the anatomy, behavior and location of this dinosaur along with a comparison with T-rex. - http://www.enchantedlearning.com/subjects/dinosaurs/dinos/Giganotosaurus.shtml
Time For Kids: T. Rex's Southern Cousin - Article about the discovery of the first Giganotosaurus fossil. - http://www.timeforkids.com/TFK/class/wr/article/0,17585,98502,00.html
Wikipedia: Giganotosaurus - Encyclopedia article that explains the biology and discovery of this large carnivore. - http://en.wikipedia.org/wiki/Giganotosaurus