Well, there's two different kind of pulp; there's more, but let's stick to two. One form of pulp is fantasy inspired, Conan, Edgar Rice Burroughs, Leiber, etc. The other is 1930's to modern t inspired, King Kong, Maltese Falcon, Indiana Jones, etc.
In my mind Wilderlands is of the first type. You have grey (not really good or evil) heroes struggling in a harsh world. You have over the top beasts and bizarre locales (dark gods, evil sorcerers, and buxom princesses). Heroes sometimes fail and get hurt.
In the later category, the locale is important, but the focus is on the protagonist. Generally the protagonist is almost always good and fight against obvious evil (King Kong really does blur the line there). The pulp is very cinematic and there's no concept of death or failure for the heroes.
Eberron falls into this group since it includes a lot of post World War I flair. I believe the Mummy and Indiana Jones are listed as inspiration.
Pulp, in general, is pretty controversial, so ask 100 people and you'll get 101 different answers.