Contact
One inbox, read by the person who builds the tables.
Spec corrections
If a cell in a matrix is wrong, send the article, the row, and the source that says otherwise. Corrections are made in place and the updated date moves.
Suggestions
Suggest a product and it is treated like any other candidate — it earns a column or it does not.
Public relations
Review units are not accepted in exchange for inclusion, a score, or a publication date. There is no rate card, because nothing here is for sale.