Peter Weston had previously published Speculation. For his return to fanzine publishing, he originally launched Prolapse in 1983 as an apazine. In 2006, it was relaunched, and featured letters of comment on the previous two issues. With the fourth issue, Weston announced its focus from that point forward would be the history of British fandom. It was subtitled "The Time-Travelling Fanzine".
Highlights include the many older fans who contribute, such as Brian Aldiss, Harry Harrison, Jim Linwood (Typo), George Locke (Smoke), Mike Moorcock (A Fanzine Called Eustace), and Christopher Priest.
Other contributors include Judy Blish, Bruce Burn, Dick Ellingsworth, Rob Hansen (Chuch), Ann Green, John Hall, John-Henri Holmberg, Dave Jenrette, Tony Keen, Dan Morgan, Peter Nicholls, Stan Nicholls, Greg Pickersgill (Stop Breaking Down, Rastus Johnson's Cakewalk), and Mark Tudor.
Art work and photography were contributed by Chris Bell, Bill Burn, Keith Freeman, Dave Hicks, Terry Jeeves (The Damned Patrol), Sam Long, Mike Meara, Sam Mercer, Chris Murphy, Lars-Olav Strandberg, Ina Shorrock, Norman Shorrock, Ian Sorensen, and Andrew Stephenson.
Also included was an extensive letter column with long letters from Brian Aldiss, John Berry (The Damned Patrol), Harry Bell (Grimwab), Sandra Bond (QuasiQuote), Claire Brialey (Journey Planet), Graham Charnock, Lilian Edwards, Malcolm Edwards (Vector), Steve Green, Joseph Nicholas (Vector), Darroll Pardoe (Les Spinge), Rosemary Pardoe (Wark, Ghosts & Scholars), Joe Patrizio (Vector), , Charles Platt (Beyond), Mark Plummer (Banana Wings), Doreen Rogers , Simone (Walsh) Restall (Seamonsters), Lloyd Penney (Torus), and Peter Roberts.