How often should you promote a blog post?

When I write a blog post, I want people to see it. Of course the main way they will find it, if I have done a good job at optimization, is from their search engine.

But I also try to give my posts a boost using social media, specifically Twitter and LinkedIn, not just once but repeatedly because you will catch different peoples’ attention at different times with the same message. The question is, how much promotion is the right amount? 

Here are two different strategies.