Resnick, P., Iacovou, N., Suchak, M., Bergstrom, P. and Riedl, J., 1994, October. Grouplens: An open architecture for collaborative filtering of netnews. In Proceedings of the 1994 ACM conference on Computer supported cooperative work (pp. 175–186).Vancouver Summary: People read news articles and reacted to them but those reactions were not…