I know that the answer to the question "What effect has it had on necessary forms of income?" is in "An analysis of the evolution of mass media in the US and Europe since World War II noted mixed results from the growth of the Internet: "The digital revolution has been good for freedom of expression [and] information [but] has had mixed effects on freedom of the press": It has disrupted traditional sources of funding, and new forms of Internet journalism have replaced only a tiny fraction of what's been lost.". Can you tell me what it is?
A:
disrupted