So I did an experiment, I made 12 money sites all of them with non unique content, bakclinked them in one pack: all tier 1 articles have 12 links to each money page, so pretty much all 12 money sites have identical bakclinks. 2 of them reached top 3 for two days and got deindexed on a third day, two others were in top 3 for month before got deindexed in one day. 2 others are still on first page the rest not in top 20 and never were. So I am trying to derive any sort of conclusion from this experiment a bit more informative than just "this strategy doesn't work" . Reasons I can think of are 1. Manual penalty. 2. Bakclinks are causing penalty. 3. content on money pages causing penalty. reason number one (manual penalty) seams to me cannot be a factor as niches that were targeted are not that big. reason number two (backlinks) might be an issue ,but than why there is such a difference in time (3 days 30+ days) especially considering that all backlinks come from same pages. reason number 3 (not unique content) seams more likely is a problem to me. as content on some moneysites are "less non unique" than on others and that can be an explanation of why some sites got deindexed in 3 days and other in a month and other still in top 3. so I am thinking of making another experiment :make 12 money pages targeting same keywords with unique content , backlink them the same way i did first time and see what results are. but before doing that and waiting one more month for results I would like to see If maybe some experts in blackhat seo would share some ideas regarding this issue?