Primary sources
We read publishers' own advertise pages, media kits and rate cards.
Confirmed by exchanges
We show which exchanges sell each publisher's ad spots, direct or resold.
Corrections welcome
Publishers can fix their own listing.
Every fact goes through the same three steps.
Find
Each fact starts on a publisher or exchange page.
Check
Each fact must be on the page it cites.
Link
The fact goes live with its source and date.
Before anything reaches a listing, it clears the same four checks.
Found
On the publisher's or exchange's own page.
Quoted
The sentence must be on the page it cites.
Dated
Every fact carries the date it was checked.
Corrected
Publishers can fix their own listing.
Facts come from three kinds of source, and each fact shows which one it used.
Publishers
Ad industry
Our editors
Send us the page that shows the right answer and we'll fix it.
Contact us