2. Targeted Keyword Discovery: Ideally you’ll want to do keyword research based on what the audience wants, not solely on what content the site already has (or plans to have sans audience targeting), which may be limited. I can do keyword research on health conditions and drugs (content I have on my site) and determine what the general population is searching for and optimize my current content, or I can cast my net wide and look at what my target audience wants first, then do my keyword research. You may find there are needs that your site is not meeting. Knowing my senior audience is interested in primarily in prescription drug plans and cheap blood pressure medication, I can first make sure I’m providing that content, and then further determine the top keywords in these areas (in the next article Step 2), and use those terms in relevant and high visibility areas on my site.
I completely agree that defintion of a target audience isa great first step, but would ask if adding in competitors to the analysis (mentioned here as a later step) helps draw out who your target audience would be via comparisons, i.e. showing who you are an who you are not - would be very interested to hear opinions on how this tactic can be used within the overall step in coordination with targeted keyword discovery. 

Hey Ted, thanks for the great questions! The peak times refer to your particular time zone, if you are targeting an audience that resides in the same zone as you. You can also use tools to find out when most of your audience is online. For example, Facebook has this built into their Page Insights. For Twitter, you can use https://followerwonk.com/. Many social posting tools also offer this functionality.
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