This is Robot magazine, a beautiful, large format, full colour manga magazine/serial artbook under the direction of Range Murata (村田蓮爾; also a contributor), who may be familiar to you as the character designer of the anime Last Exile (highly recommended), amongst others. Yoshitoshi Abe (安倍吉俊) (involved in various capacities with Serial Experiments Lain (a favourite), Texhnolyze (another favourite), Haibane Renmei, NieA_7, etc) is also regularly featured. It is pricey and slim compared to the more mainstream phonebook sized manga compilations, but the quality of art included is second to none. Perhaps the cover price is a small price to pay for supporting these artists?
My only complaint is that I don’t own all of these, so it can be a little hard to dip into stories which are already underway; of course the same is true of any manga magazine, but perhaps not all of these will be separately published in full colour.