It is important for an organization to measure the effectiveness of any program or process for long term success and sustainability. The same is true with social media and the intended marketing for your brand. The key to measuring is knowing where you are at the outset. Do an "As-Is" Survey of your current state of social media. Quantify your existing network and the level of activity you are seeing so that you have a baseline against which to measure. Patience is key to winning the social