Also, as someone sitting basically on the edge of Gen X and Millennial, so about as "very youngest" as one can get.
By college, we were using the internet for sourcing some, though I think often books were required to be sources. I remember some papers in college where I went to the library to find books I could source that matched the other research sources I had used (from online). I did a fair number of papers and reports, but not a lot of them required a lot of sources since they were usually based on lab testing and experiments.
Wikipedia has always been a "no go" but that's easy to just cite the sources Wikipedia cites as needed, but that was also pretty much after my time of caring.
I've used computers basically all of my life, like literally since I was 5, and been online since at least the mid 90s, with dial up, which would have been some in High School, I don't really recall using the internet a lot for research though in those times. Mostly it was dialing in to some local school based message boards (one for the state and one for the state college, though I didn't ever attend that school). At some point a friend had AOL dial up. I think I was a senior or junior around the time that the "regular" internet was at all a regular part of my life. Even then, most of what I remember is using Usenet a lot and visiting a lot of anime fan websites on Geocities type pages. Not really a lot of researching for papers.