Tom Brevoort is part of the geekistocracy at Marvel comics, and as such, his blog is quite an insight into how things work behind the scenes there. For example, today he posted a load of preview art I've seen no-one linking to yet, and some of it is nice stuff - Olivier Coipel, Steve McNiven (from CIVIL WAR #4, no less), etc. Most fanboys would give their right arm to ghost Brevoort for a day, so this glimpse into the work of the power behind the throne is quite revealing.