Company · Education & courses
The 30 Days Substack Challenge
The 30 Days Substack Challenge has advertised in 1 newsletter, none in the last 60 days.
1Newsletters
1Newsletter placements
Timeline, last 18 weeks
Each square is a week. a placement ran issue read, no placement no issue captured that week.
First placement in this window: Aug 24.
Longest run: 1 week straight.
2 newsletter-weeks not captured; those weeks are drawn hatched, not empty.
The same, as a table
Recent ad copy
| “The 30 Days Substack Challenge & Circle”HOW WE GROW with Ana Calin, Aug 26 |
Newsletter placements
Newest first, one row per sponsor slot.
First time the sponsor's first placement in this newsletter
Updated through .