ListJumper vs Viral Mail Profits

ListJumper (2008) and Viral Mail Profits (2009) are both mailer-type viral_mailer listings with free+paid pricing. They're close in age and identical in credit system type and tier structure.

With matching credit type and pricing tier, and only a year between them, there's no structural edge visible in the listing data. This is another case where the sensible move is to treat them as comparable options rather than search for a winner that the data doesn't support.

Run free-tier mailings through both with distinct tracked links. If one clearly outperforms in your own results, that's a better signal than anything in the listing data, and it tells you where a paid upgrade might be worth testing next.

Close matches on paper. Use your own tracked mailing results to decide between them rather than founding year or any other data point in the directory.