Conduct a thorough account audit and gap analysis. Audits are time-consuming and tedious, but they’re absolutely necessary. I use the account audit to understand underlying drivers of performance and to determine whether work being done in the account is in alignment with business goals. Uncovering the strengths, weaknesses and opportunities provides critical information I need to form my guiding principle for account management.

Even more specifically, I’m talking about Google AdWords—the major player in this space—and Bing Ads, the next largest network of its type, which also handles PPC ads on Yahoo. AdWords and Bing Ads operate so similarly that the differences between them won’t affect the advice in this post. For practical purposes, when you’re just starting out, you can think of Bing Ads as a mini AdWords: smaller in terms of traffic but also in terms of cost, which can be appealing.
Stadiums, airports, universities, and malls are examples of specific venues that can be targeted in order to reach specific interest groups. Stadiums provide a great opportunity to focus on specific short engagement events with an audience defined by that event. They often host fans from two specific cities or schools or fans of a specific music genre that is heavy in one demographic. A band like One Direction, for example, is likely to attract school-age female fans.
It's wonderful to deal with keywords that have 5,000 searches a day, or even 500 searches a day, but in reality, these popular search terms actually make up less than 30% of the searches performed on the web. The remaining 70% lie in what's called the "long tail" of search. The long tail contains hundreds of millions of unique searches that might be conducted a few times in any given day, but, when taken together, comprise the majority of the world's search volume.
If not, you’ll need to determine how close to being profitable you are. If it would only take one or two more sales or leads to turn a profit, it’s time to start optimizing your PPC campaign so you can cross that threshold sooner rather than later. Start adjusting your landing page (perhaps with the help of A/B testing), your ad text, and your keyword strategy until you find a winning combination.
When using the Keyword Explorer, Ahrefs will also produce the "parent topic" of the keyword you looked up, as you can see in the screenshot above, underneath the Keyword Difficulty meter. A keyword's parent topic is a broader keyword with higher search volume than your intended keyword, but likely has the same audience and ranking potential -- giving you more a valuable SEO opportunity when optimizing a particular blog post or webpage.