Smart answer:

Your search for What was the impact of craigslist on newspapers returned the following results:

the dynamics at play

The Impact of Craigslist on Local Newspapers, the study explored the dynamics at play over the period 2000-2007, focusing on newspapers’ degree of reliance on classifieds at the time of Craigslist’s entry into their markets.

Source:

Mr. Seamans

“Based on the research we did, there’s no question that Craigslist’s entry had a big effect on the newspaper industry,” Mr. Seamans said.

in the cold for classified ads

The rise of Craigslist left newspapers out in the cold for classified ads, losing two-thirds of their advertising revenue between 2006 and 2017.

Source:

a huge amount of lucrative classified advertising

Craigslist alone has drained a huge amount of lucrative classified advertising away from newspapers.

Source:

the majority of the majority's classified advertising – once a huge revenue source –

As for advertising, the newspaper business long ago lost the majority of the majority's classified advertising – once a huge revenue source – to sites like Craigslist and various real estate and auto sites.

on newspapers’ degree of reliance on classifieds at the time of Craigslist’s entry into their markets

The Impact of Craigslist on Local Newspapers, the study explored the dynamics at play over the period 2000-2007, focusing on newspapers’ degree of reliance on classifieds at the time of Craigslist’s entry into their markets.

Source:

at play over the period 2000-2007

The Impact of Craigslist on Local Newspapers, the study explored the dynamics at play over the period 2000-2007, focusing on newspapers’ degree of reliance on classifieds at the time of Craigslist’s entry into their markets.

Source:

being pretty pointless spots to advertise our openings the few times

Sites like Craigslist and local newspapers ended up being pretty pointless spots to advertise our openings the few times we had them.

Source:

during the 2000s

In a new study, Robert Seamans, assistant professor of management and organizations at the NYU Stern School of Business, and Feng Zhu at Harvard Business School, examine the impact of Craigslist, a website providing classified-advertising services, on local US newspapers during the 2000s.

Source:

classified advertising, which was the newspaper industry’s profit cornerstone

Meanwhile the advent of Craigslist decimated classified advertising, which was the newspaper industry’s profit cornerstone.

Source: