ngs and was canceled a year later, the enduring popularity of the series resulted in Paramount creating a set of movies, and then a new series Star Trek: The Next Generation, which by the early 1990s had become one of the most popular dramas on American television. Star Trek fans continued to grow in number, and first began organizing conventions in the 1970s. No other show attracted a large organized following until the 1990s, when Babylon 5 attracted both Star Trek fans and a large number of literary SF fans who previously had not been involved in media fandom. Other series began to attract a growing number of followers. The British series, Doctor Who, has similarly attracted a devoted following. In the late 1990s, a market for celebrity autographs emerged on eBay, which created a new source of income for actors, who began to charge money for autographs that they had previously been doing for free. This became significant enough that lesser-known actors would come to conventions without requesting any appearance fee, simply to be allowed to sell their own autographs (commonly on publicity photos). Today most events with ac