| # | Website | Ranking | PriorRank |
| Warsaw Genealogy Society | Not Ranked | ||
| Geni.com | Not Ranked | ||
| Federation of Gen. Societies | Not Ranked | ||
| FreeBMD.org.uk | Not Ranked | ||
| Geneabloggers.com | Not Ranked | ||
| Mocavo.com | Not Ranked | ||
| Poznan Marriage Indexing Project | 400,473 | Not Ranked | |
| Ornatowski.com | Not Ranked | ||
| GenUKI.org.uk | Not Ranked | ||
| GenealogyWise.com | Not Ranked | ||
| AutomatedGenealogy.com | Not Ranked | ||
| GlobalGenealogy.com | Not Ranked |