GEDMatch is a utility site for comparing autosomal DNA Files. They accept for import exported DNA files from 23&Me, AncestryDNA, and Family Tree DNA. Once the files have been processed you can run various searches, including one to many and see exact segments matched on a one to one match.
DNAGedcom is a utility site with tools to interpret the results of DNA tests taken for genealogical purposes. Initially developed for the use of adoptees looking for their birth family, the tools have expanded for multiple purposes.
Genomemate is a free desktop tool for managing autosomal DNA comparisons and identifying common ancestors. It can help with group triangulation, displaying overlapping segments, and X Chromosome doner identification.
DNA Painter A free website created by Jonny Perl which allows the user map DNA segments and identify patterns in the data.
Projects
Family Tree DNA:Maine Genealogical “Working Together to Discover Our Maine Roots” Administered by Nancy Mason, this project helps using Family Finder results in conjunction with our traditional research to find Maine ancestors in common with our matches.
Books
Books (for your convenience in locating these books, links are to Amazon.com)