Blue cheese is an entire category of cheese including plenty of other cheeses, like Roquefort, Fourme d'Ambert, Point Reyes Blue, Bleu d'Auvergne, and Stilton, to name a few.
Gorgonzola is just one type of Italian blue cheese. It's very fashionable in recipes at the moment, but can be substituted with any other blue cheese. It's generally available in a younger, milder, creamier variety (Dolce Latte), and an older, firmer, stronger variety (Aged Gorgonzola).
Gogonzola is a blue cheese originating from Gorgonzola in the province of Milan in Italy. Real Gorgonzola cheese uses the mold Penicilium glaucum and must be made in the Gorgonzola region. Blue cheese is a generic term that refers to any veined cheese that has had Penicilium mold added. Unless your Gorgonzola came from Gorgonzola, it's not Gorgonzola.
"Gorgonzola" is both a cheese and the supposed original source of the cheese. The cheese Gorgonzola is a veined Italian "blue" cheese, made from whole cow's and/or goat's milk. The comune of Gorgonzola in the province of Milan, in Lombardy, northern Italy claims to be the the origin of the cheese - reportedly having been producing it since 879 A.D - although some other localities in the region dispute this.
Bleu d'Auvergne - Blue Cheese
The distinct smell of gorgonzola cheese is often described as pungent, earthy, and slightly tangy. It has a strong aroma that is reminiscent of mold or blue cheese, with a sharp and intense flavor profile.
Roquefort is a French Bleu Cheese.
I think blue cheese originally came from France.
Roughly 84 g of gorgonzola in 3/4 C.
You CAN eat Gorgonzola cheese when you are pregnant but it is not recommended that you eat any soft cheeses. I know blue cheeses are high on the do not eat list. I think you can get listeria from eating it which is very dangerous for an unborn baby.
Stilton cheese is not "fermented" as such. Like other blue-veined cheeses, such as Italian "Gorgonzola" and French "Roquefort", it gets its blue veins from the saprotrophic fungus Penicillium roqueforti. For more information on Stilton, see the related links.
"Gorgonzola" sung by Leslie Sarony
Roquefort cheese is made with sheeps milk and usually has green veins of mold and is usually VERY strong flavored. Blue cheese can be made with cows, sheep, or goat milk and has penicullium mold added to the cheese and is very mild in taste.
Cheese - soft mould-ripened or blue cheese should be avoided, i.e. cheese that has a blue vein in it or the type of skin or crust that is found on cheese such as Brie or Camembert. Unpasteurised soft cheeses, such as those made from sheep and goat's milk are also best avoided.