Where do post ideas for my newsletter come from?

Content Ideas, under AI Site Editor, lists your own episodes and social posts that have no News / Blog article made from them yet, newest first. Each row says whether it is an episode or a social post, and which platform it came from. Draft a News / Blog Article writes a blog article from that episode or post's own words (its transcript, description, or caption) and leaves it as a draft in your News / Blog library for you to review. Draft a Quiz writes quiz questions about it.

Once your sites have visitors, the section also shows what people opened most in the last 30 days, and the words they searched, including searches that found nothing. Click a searched word and Page Makers opens with that topic filled in, ready to draft an article.

Everything listed comes from your own content and your own visitors. Before you have visitor activity, those lists say so instead of inventing ideas.