My primary occupation is freelance writing, which I have been hard at since 1984. Prior to that I worked for two major corporations as a writer. The Internet has made what I do much easier. A great example of what I mean occurred yesterday.
I'm working on a story about a quarry lake in Brookfield, Wisconsin, that once was run by a sand and gravel company. I put the name of the company into Google which took me to an obituary section from 1976 that appeared in a Madison, Wisconsin, newspaper.
Amazingly, there was an obituary listed for the owner of the sand and gravel company who had died at age 54. A number of relatives were listed so I did an online search and came up with the phone number for a sister (actually, it turned out, a half sister) who lived in the Madison area. I called and reached her; she was friendly and gave me the number of the man's wife, who now lives in Florida.
Wow.
Soon I was speaking with her, and she was friendly, too.
I don't know how or even why this obituary page from 36 years ago was indexed, but it saved me countless hours of work.