Pinterest is my primary mode of browsing for inspiration. It makes it very easy to look for specific ideas, such as "easy quilts" or "modern quilts" or "baby quilts". When I find something interesting, it is easy to save it to one of my pinterest folders. Most of the pictures I find on Pinterest have a "visit" button so I can see the website from which the photo originated. If I see "flickr" under the photo, I know that there will be no website and save myself checking.
I agree that when using Google, it is best to use -pinterest on searches. Google comes up with lots of pinterest photos that are in people's folders, so it can be impossible to locate the one photo you are interested in. However, that is a much different experience than setting up a Pinterest account and going to pinterest.com to search for ideas.