Who's your daddy's daddy's daddy's ...?

June Wong thinks she's found the way to make the online social networking craze that has enveloped youth culture relevant to adults. Rather than exchanging photos, music and cellphone numbers, as many of the 100 million members of MySpace.com do, participants in Ms. Wong's online community share Y-DNA markers and mtDNA Haplogroups. With a swab of the mouth and access to Genetrack's site DNAancestryproject.com, clients can trace their lineage for possible connections to famous figures of the past, such as Marie Antoinette, whose DNA has been preserved in a locket of her hair. The farther back in time, the wider the family connections. For example, one in five men in the northwest of Ireland carry the DNA of the great Irish king Niall Noigiallach, who ruled in the early 5th century. And they estimate that 2 per cent of New York's European males today also share the royal chromosome. Turning back the clock to prehistoric times, the website lets participants track the migratory paths their distant ancestors took out of Africa and even connect with people of related groups today.