The author of "The Fourth Dimension" edited what science fiction webzine until its closure in 2014?
The Fourth Dimension (book): The Fourth Dimension is a non-fiction work written by Rudy Rucker, the Silicon Valley professor of mathematics and computer science, and was published in 1984 by Houghton Mifflin. Rudy Rucker:  The author of both fiction and non-fiction, he is best known for the novels in the Ware Tetralogy, the first two of which ("Software" and "Wetware") both won Philip K. Dick Awards. Until its closure in 2014 he edited the science fiction webzine "Flurb".
"Flurb"