Instead of posting an angsty journal, I've finally decided to put something constructive in this journal, links to sites I find very useful when looking for inspiration, here goes:

General Concept Art:
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Concept Ships (Space ship designs by various concept artists)
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Concept robots (Robot designs by various concept artists)
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Concept cars (Cars and wheeled vehicle designs by various concept artists)

Artists:
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Michel Gagné An artist that worked in productions like The encredibles, Star wars The clone wars (animation) and the iron Giant.
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Jessica Borutski A cartoon animator who seems to have established the look of the new Loony Toons Show.
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Alessandro Barbucci The artist that worked on the W.I.T.C.H. comic, he has a very nice combination of Japanese Manga and the elastic Disney style.
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Burne Hogarth An artist that once ilustrated old comic books such as Tarzan, his book on anatomical studies uses geometric shapes to rationalize even more the understanding of anatomy.
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Bob Rafei The artist responsible for the overall look of the Jack & Daxter series.
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Feng Zhu A VERY experienced concept artist that has worked on... A LOT OF THINGS!!!

Visual Resource:
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Dark Roasted Blend A very good site if you like curious different things, the subjects vary, but they always manage to select the most innerspring and curious ones, be it from urban ruins to steam punk illustrations to concept cars.
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Women Fighters in Reasonable Armor Well, the sites name is kinda auto-descriptive, the site posts images of female characters that go against the stereotypical Sexy-Armoured Girls.
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Art Deco A blog that posts various images of the 1930's, usually about fashion and magazine illustrations.
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Just a car Guy He doesn't seem like "Just a car guy", more like THE car guy, if you're into antique cars and concept cars in general.
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Diesel Punks Steam Punk, but in the 1920's to the 50's.
Hope you enjoy the links!