Behavior and technology -- The internet's potential for investigators and intelligence officers -- People, places, organizations, and topics -- A practitioner's perspective -- The search -- Internet posts and the people they profile -- Finding the needles -- The need for speed -- What we can't do without -- Social and technological change -- Internet use growth -- Evolution of internet uses -- Physical world, virtual activities -- Connection and disconnection -- Use and abuse : crime on the internet -- By the numbers? -- Online venues -- Digital delinquency -- "Free" intellectual property -- The insider.