Google AdWords can be a profitable way for advertisers to reach customers. On average, advertisers pay between 15-50 cents per click from Google searches. While research costs can be high initially as advertisers determine the best keywords and ad placements, Google uses both bid prices and click-through rates to determine ad position, so high bids are recommended early on to generate clicks and lower bids can be used once high click-through rates are established. Whether the costs are effective depends on both qualitative and quantitative factors and the size of the potential customer audience reached through online advertising.