Whiteboard
Whiteboards became commercially available in the early 1960s, but did not become widely used until 30 years later. Early whiteboards needed to be wiped with a damp cloth and markers had a tendency to leave marks behind, even after erasing the board. Dry-erase markers for whiteboards were invented in 1975.
WorldWideWhiteboard
This history seems to justify the company's claim that it was the first to offer commercially a tool for Web access to a shared, real-time environment with such education-oriented features as subject-specific tool bars. The WorldWideWhiteboard was also adopted as an option available with certain text-books by publishers such as McGraw-Hill, John Wiley and Sons, Pearson, Cengage Learning, and Bedford, Freeman and Worth. The use of the WorldWideWhiteboard by campuses and educational programs to support online environments, give classes, hold faculty office hours and meetings expanded over the next decade.