All those graphs, analytics, and tools (both in AdWords and external) have a purpose. They help quantify your efforts, and if you're not getting a good return on your ad campaigns, they need to be reworked. Oli Gardner at Unbounce estimates 98% of your paid ads are a waste of money, and it's hard to disagree.
Released in 2000, Adwords remains the primary source of Google's revenue. But Google also makes money from advertising when you're not on one of its sites at al... more