100k BizzOpp Mailing List - $750 BIN Obtained from a facebook viral marketing campaign. All 100% double-opt in. Made me a good $1-2.5k monthly. Last mail 3 months ago. 50k Gambling Mailing List - $500 BIN Obtained from a facebook viral marketing campaign. All 100% double-opt in. Made me a good $500-$1.5k monthly. Last mail 3 months ago.