Amazing article. As per my point of view, the best source of traffic in today’s world is nothing but the social networking site. A huge number of people are using social media. So, we can connect with our audience easily. While doing the research, I have found this article: https://www.blurbpointmedia.com/design-social-media-business-marketing-strategy/ which is about the developing the community on the social media. I think the best way to a successful social media account is nothing but the posting different kinds of interesting content on the daily basis!
If you havent see it already, check out the links in shor's comment below - there are some great resources in there. In some cases you can also consider surveying your current audience or customers through email, on-site surveys or SurveyMonkey. Be sure to ask for some profiling information that you can use for determining specific persona needs like age, sex, location, etc. (Probably best not to make it sound like a creepy text chat like I just did though...) :)
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.