Certainly. Another initially underestimated concept that became crucial to the development of the Internet was hypertext, particularly as implemented in the World Wide Web.
Hypertext refers to text displayed on a computer or other electronic device with references (hyperlinks) to other text that the reader can immediately access. While the concept of hypertext was proposed by Vannevar Bush as early as 1945 in his essay "As We May Think," it wasn't widely recognized as a transformative idea for information sharing.