I really like the idea of a monthly newsletter and your execution of the first edition is great! I have two suggestions for your consideration.
- Have a summary punch list in the monthly announcement email similar to how "Okta Release Notes" emails that are sent out when a new version of Okta is released. In the release notes I like that I can quickly see different areas of change and can then click the link to the website if I want to dive deeper.
- Make sure the content you provide links to is up to date. The link to the "Okta’s Certification Program" takes you to a post from Aug 15, 2022 which is not that old but has time sensitive information that is out of date.

