I first got Pinterest several years ago as I read it would be useful to to help get visitors to my (now not very updated) blog. I really tried to use it but I just could not understand the point of it, so I gave up and didn't use it for years!
Now I'm wedding planning...it suddenly all makes sense!
I've got a board for my custom headpiece inspiration, a board for flower inspiration, a cake board etc and I'm finding it more and more addictive as time goes on Some suppliers have found links to my boards very helpful (although I expect some want to cry at the mention of Pinterest)!
Have you been using it? I've found it really helpful and don't use it to copy things exactly but rather to just set the mood for different aspects of my wedding. The main danger from me using it is completely neglecting the washing up