Here's a few places that never fail to inspire, I am a total ffffound.com addict.
Ffffound - http://ffffound.com/
http://pinterest.com/n_wilson/
Print & Pattern - http://printpattern.blogspot.com/
Mike Perry - http://www.mikeperrystudio.com/
Crowded Teeth - http://crowdedteeth.blogspot.com/
Beast Pieces - http://www.beastpieces.com/
- Design and letterpress blog of Studio On Fire
Damien Correl - http://damiencorrell.com/
MrBowlegs - http://studiobowlegs.co.uk/projects/
Neasden Control Centre - http://www.neasdencontrolcentre.com/
I Love Dust - http://www.ilovedust.com/ild
Steven Harrington - http://www.stevenharrington.com/