Prologue: The watchdog and the thief -- Hal and me -- The vital paths -- A digression : on what the brain thinks about when it thinks about itself -- Tools of the mind -- The deepening page -- A digression : on lee de forest and his amazing audion -- A medium of the most general nature -- The very image of a book -- The juggler's brain -- A digression : on the buoyancy of IQ scores -- The church of Google -- Search, memory -- A digression : on the writing of this book -- A thing like me -- Epilogue: Human elements

Discusses the intellectual and cultural consequences of the Internet, and how it may be transforming our neural pathways for the worse