Blog
The organization’s main blog
Email newsletter
Recurring newsletter sent to customers or subscribers
Website Chatbot
Site notifications on a tool like Intercom
Community forum
A forum where folks in the community and customers congregate like Facebook group, Discourse group, etc.
In-product promo
A notification in your actual product (if it’s digital) indicating a new feature is available and why it’s important
LinkedIn
Posts or articles
Instagram
Posts or stories