Noted: Bloomberg Photo Service

The Bloomberg Photo Service Tumblr is really a great, unexpected surprise and I can't recommend it enough. Heavy on the manufacturing porn, they're putting their access to good use. Some recent favorites include: 

On top of great photos, they're also posting some really interesting bullet points about their subjects. It makes for a quick and utterly enjoyable experience. Worth a follow or a bookmark. 

http://bloombergphotos.tumblr.com