When marketing your business through social media, it can be easy to hit a proverbial wall and decide that everything worth doing has already been done. When you find yourself stuck in this rut, it can be extremely helpful to read about the innovative ways other companies are using social media. This will hopefully inspire you to put your own spin on a particularly interesting or engaging campaign, rather than solidify your thought that everything has already been thought of.
David Moth has a fantastic list of excellence in social media at Econsultancy. Some even come with a disclaimer that they’re no longer possible since they bent the rules of a specific social media platform, but that should encourage you to bend your own rules.