http://visual-poetry.tumblr.com/
Visual Poetry is mainly a typography blog, but what I love about it is that the type is always treated in an interesting way. Like this:
Visual Graphc is usually pretty fun. Sometimes the author of the blog goes off on rants about things that are uninteresting, but I mostly just scroll past that and look at the pretty pictures.
BeType has great typographic material that can sometimes be tongue-in-cheek so that's great.
i mean look at this. I'm crying it's so beautiful.
And I'm sure many of you have seen this blog but http://beautifulswearwords.com/
And finally, to know you're not alone, you should also follow this blog: http://clientsfromhell.net/
It's full of great stories that you can either relate to or be so glad you're not dealing with.