Dnagen is the home of many experimental tools related to genetic genealogy.
Family Finder Segment Triangulation
The Triangulator allows you to triangulate autosomal segment between your Family Finder matches.
Read more about it here: DNAeXplained: Introducing The Triangulator
Get started here: Family Finder Segment Triangulator
Family Finder Network Graphs
The Family Finder Graphs, currently defunct, allowed you to visualize Family Tree DNA Family Finder matches relationships in different ways. Read more about them here.
Automated Family Tree Comparison
Comparing your own family tree against those of autosomal matches can be very tedious and there is a lot that can be automated and improved in this field. The registration for these tools is currently closed. Read more here (Swedish).
Example of alternative way to find unknown shared common ancestors, by comparing ancestral locations in a set of triangulated ICW matches.
Project Result Visualisations
This Family Tree DNA project page add-on renders Y-DNA and mtDNA project results as a graphical tree and compares member results with the ISOGG Y-DNA Haplotree, YFull YTree and the mtDNA PhyloTree. Read more here and try it out yourself by joining the project.
It can also be used to predict mtDNA subclades for mtPlus results, based on HVR markers:
Family Finder Fusion Tables Visualisations
The Iowa DNA Project have been trialling an experimental integration with Google Fusion Tables. It allows a Family Tree DNA project administrator to export anonymized Family Finder inter-project match results to Fusion Tables for further statistical analysis and visualisations. See more examples here.
Family Finder Match Statistics
Simple chart that tracks the number of matches per kit over time:
Aggregated statistics based on all member results with percentiles for Family Finder match count, generated for the Sweden DNA Project Newsletter. Read more here.
Swedish Portrait Archive
The Swedish Portrait Archive is a freely available archive with half a million portraits of identified Swedes. The Gedcom search function makes it possible to match every person in a family tree against the whole archive, in one go.