I was asked only the other day where one should go for (more) information on digital signage and digital out of home. My favourite blogs are probably the same as yours; sixteen nine [1] (David Haynes formerly at EnQii / Digital View Media now works for Broadsign), David Wiseman at Minicom [2] (specialises at conducting great interviews) and Bill Gerba’s excellent Digital Signage News. [3]
Even if you are not necessarily interested in retail banking specifics then TellerTV [4] is still very much worth a read.
In German, Oliver Schwede at Innoea Consulting [5] runs a great blog and he also manages a very good Xing Digital Signage group.
Anyway without wanting to steer you the reader away to competition (other than above) I happened to come across this Digital Signage Universe [6] site which seems to have a long list of other possible points of interest.
Enjoy the link but please do come back!!!! 😉