Ancestry.com helps people connect with their family history and build out their family tree. It may seem simple on the surface, but to do so it maintains more than 11 billion records and 4 petabytes of content—historical records, birth records, death records, war and immigration records, even yearbooks—often in handwritten format. It uses advanced content processing technology to index the content and make it searchable. Ancestry.com is also generating new data streams with the addition of DNA processing to help clients make connections. With some saliva in a tube, it can sequence a client's DNA and match the client with other people in its database, like distantly removed cousins.