Group boards on Pinterest are a great way to get a Pin "started" and to get more exposure to a big audience quickly.
Using group boards to boost Pins strategically:
If you're ready to get started with group boards, there are a lot of groups on Facebook there, but my favorite is this one!
Today, start joining group boards that relate to things you're already Pinning about. Sometimes it can take a few days for group board creators to get to all of the invites, so it's good to be ready!