Andrew Lolk takes us through the process of optimizing campaigns after the initial 14 days. The post -- the last in a three-part series -- tells us this is the most important time to pay close attention to the ads and keywords driving conversions. For example, start reviewing bids for exceeding budgets. Marketers who see keywords with low click-through rates between 0.5% to 1% in the top 5 ad positions should consider pausing them. Read the article here.