Question: The author of "The Fourth Dimension" edited what science fiction webzine until its closure in 2014?

Context paragraphs:
Rudy Rucker: Rudolf von Bitter Rucker (born March 22, 1946) is an American mathematician, computer scientist, science fiction author, and one of the founders of the cyberpunk literary movement.  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".

Charles Howard Hinton: Charles Howard Hinton (1853, United Kingdom – 30 April 1907, Washington D.C., United States) was a British mathematician and writer of science fiction works titled "Scientific Romances".  He was interested in higher dimensions, particularly the fourth dimension.  He is known for coining the word "tesseract" and for his work on methods of visualising the geometry of higher dimensions.

Gaston de Pawlowski: Gaston de Pawlowski (Joigny, 14 June 1874 - 2 February 1933, Paris) was a French writer best known for his prophetic 1911 novel of Science Fiction, "Voyage au pays de la quatrième dimension" ("Voyage to the Land of the Fourth Dimension").

The Fourth Dimension (Hypocrisy album): The Fourth Dimension is the third studio album by Hypocrisy, released on October 25, 1994.  The limited edition digipak (cat.-no.  NB 112-2 DIGI), not to be confused with the digipak re-release, had "The Abyss" instead of "The Arrival of the Demons".  This track was later re-recorded for "The Arrival" album.  The digipak re-release contains two bonus tracks: "Request Denied" and "Strange Ways" taken from the "Maximum Abduction" EP.  After the departure of vocalist Masse Broberg, Hypocrisy's lyrics began to focus more on the paranormal and science fiction.  The person on the cover is Mikael Hedlund, Hypocrisy's bass guitar player.

Timescapes: Stories of Time Travel: Timescapes: Stories of Time Travel is an anthology of science fiction short stories on time travel edited by Peter Haining.  It was first published in the United Kingdom hardcover by Souvenir Press in August 1997.  The first American edition was issued in hardcover under the alternate title Time Travelers: Fiction in the Fourth Dimension by Barnes & Noble Books in 1998.

Flurb: Flurb was an American science fiction webzine, edited by author Rudy Rucker and launched in August 2006.  In addition to short stories, "Flurb" featured paintings and photography by Rucker.  It was released biannually.  The author of an accepted story retained full copyright, including the right to have the story published elsewhere, and to request that it be taken down at any time.

Science Fiction Quarterly: Science Fiction Quarterly was an American pulp science fiction magazine that was published from 1940 to 1943 and again from 1951 to 1958.  Charles Hornig served as editor for the first two issues; Robert A. W. Lowndes edited the remainder.  "Science Fiction Quarterly" was launched by publisher Louis Silberkleit during a boom in science fiction magazines at the end of the 1930s.  Silberkleit launched two other science fiction titles ("Science Fiction" and "Future Fiction) "at about the same time: all three ceased publication before the end of World War II, falling prey to slow sales and paper shortages.  In 1950 and 1951, as the market improved, Silberkleit relaunched "Future Fiction" and "Science Fiction Quarterly".  By the time "Science Fiction Quarterly" ceased publication in 1958, it was the last surviving science fiction pulp.

The Other Side of Here: The Other Side of Here is an early science fiction novel by Murray Leinster, first published as a five-part "Astounding Stories" serial in 1936, under the title "The Incredible Invasion".  It was first published in book form, in a "thorough revision", as one side of an Ace Double, in 1955.  While no further American editions have been issued, the novel has been translated into Italian ("L'altra dimensione", 1955), Spanish ("Ataque desde la Cuarta Dimensión", 1956), French ("L'autre côté du monde", 1958) and German ("Invasion aus einer anderen Welt", 1959).  The novels tells the story of "an invasion from the fourth dimension", foiled by an insurrection against the invaders' home government.

John O'Neill (editor): John O'Neill is an Ottawa, Canada born writer, founder, editor and publisher of "Black Gate" magazine, a quarterly fantasy magazine first published in 2000.  O'Neill holds a doctorate in Chemical Engineering and continued to work in the high technology area.  He developed a passion for science fiction and fantasy at an early age and has continued to actively promote this literature genre.  He was one of the founders of SF Site, a popular science fiction webzine, before leaving to found New Epoch Press in 2000.  New Epoch Press publishes the fantasy adventure magazine "Black Gate".

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.  The book is subtitled as a guided tour of the higher universes.  The foreword included is by Martin Gardner, and the 200+ illustrations are by David Povilaitis.  Like other books by Rucker, "The Fourth Dimension" is dedicated to Edwin Abbott Abbott, author of the novella "Flatland".

Supporting paragraphs: The Fourth Dimension (book) Rudy Rucker
Answer: "Flurb"