Speckyboy.com has a great article on 20 places for logo inspiration. If you're like me, you sometimes get stuck designing logos. Logos are the hardest form of design in my opinion. To encapsulate an entire entity in one graphic, icon or type treatment is the hardest challenge a designer can face. So hop over to speckyboy.com and check out there article on places for inspiration! link provided below.
http://speckyboy.com/2008/10/26/20-inspirational-resources-for-logos-and-logotypes-get-creative/