on Just Publishing Advice:
Do you need to change your digital marketing strategy?
Social media has a big problem.
Facebook is losing users due to data privacy concerns. Google+ is closing down. Twitter is becoming more political than social.
All these negative factors have and will make social media marketing far less effective.
Apart from the current issues that are concerning people about privacy and personal data use, there is a more fundamental problem with social media marketing.
If you are trying to promote your books, blog, services or you are affiliate marketing; there is an issue of intent.