The Internet has dramatically changed how people find businesses and buy products. In the past, advertising was fairly straightforward; a marketing agency would run a series of newspaper, radio or television ads and track how much business increased. Focus groups could be employed, and other means of advertising such as billboards could be tried as well. The Internet, however, is now the primary means of advertising for many companies and marketing firms. Fortunately, classic techniques for determining success still work admirably; here are a few tips to consider.