Email your sources to help amplify content promotion
Sending out an email to your subscribers should go without saying.
Your content should ideally have outbound links to a few GREAT resources. Emailing your sources accomplishes a number of things:
1. They're aware their name is mentioned
2. They're aware their content is being linked to
3. You increase the chance of your content being shared or linked to from their sites and/or social media
You may find it easier to get in touch with them via a direct message on LinkedIn or Twitter too.