Please read the following blog post (or just the first part of it if you do not have the time): it is very interesting and enlightning...
This is the reason for me leaving Pinterest and deleting my boards, one of these coming days.
I just need time to compile this inspiration somehow else, and currently my only alternative will be a truck load of bookmarks or one or more documents placed at Google docs, for easy access.
Yep, copyright is a bitch, but I understand and wish to respect it.
Just thought you might wanted to know too!