Ponca City, We Love You writes: "Nature reports that two companies have announced plans to commercialize individual human genomes by genotyping millions of regions in customers' genomes, called single nucleotide polymorphisms or SNPs, which have been linked to a handful of diseases and nonmedical traits and sell that information back to the customer. Navigenics will focus on medical conditions and estimate composite risk factors for diseases based on each customer's SNPs. 23andMe plans to introduce a social networking component by allowing customers to link their data with others, such as family members. Once customers have their DNA read and the information stored, they will be notified when medical and theoretical advances relevant to them are achieved. One of 23andMe's founders, Anne Wojcicki, is married to Google founder Sergey Brin and Google has invested $3.9 million for a minority stake in her company raising concerns about the privacy of the genetic data. Google is developing its own suite of health tools to allow users to personalize and share health information, and many speculate that 23andMe will feed its data to Google."