| Site | Description |
|---|---|
| Abacus | An Abacus resource centre |
| Andreas Tabak | A German collector's slide rules |
| Andrew Nitikin | A Resource Centre |
| Atsushi Tomozawa | A Japanese collector's site |
| Bill Robinson's Site | A collection of articles and list of hyperbolic rules |
| Bob Adams Site | Contains an Elektro Slide Rule Database |
| Bob's Calculators and Slide Rules | Includes Thacher and Fuller Replicas |
| Bryan Purcell's Site | Information about Slide Rules, Math, Science, Astronomy, and Education |
| Calculators at Gilai collectibles | A collection of slide rules and calculating equipments |
| Chris Gillings | A list of pictures and rules in his collection including many special purpose rules |
| Chris Hamann's Slide Rule Collection ... | in "The On-Line Museum" = Collection + Restoration Mechanical Calculators, SlideRules + More |
| Chris Osburn's Calculating Instruments | A personal collection and a question: Is a "calculating instrument" an "insidious device"? |
| Chris Sangwin | A resource centre |
| Circle of German slide rule collectors | Site of the German slide rule collectors |
| Collector's Weekly | A selection of High Bid/Most Watched/Ending Soon/Completed eBay Auctions |
| Cold War Calculators | For defence planners and military commanders |
| Colin Tombeur's Site | A small site with some interesting rules. |
| Dave Crate's Quality Used Slide Rules | Archive of Dave Crate's site. |
| Dave Hoyer's Slide Rules | An Australian Collector's Site. The World's Most Accurate Slide Rule! |
| Dave van Domelen | A collection of his slide rules |
| David A Davis | A Richoh/Relay Archive Site. |
| David M Riches | A collection of mathematical instruments and slide rules |
| David Rance | A Dutch collector's site |
| David Thompson | Archive Site. |
| David Walker's Web Site | An interesting microscopic analysis of various slide rules |
| Dick Lyon's | An Otis King Resource Centre |
| Dick Rose | A site containing a large number of vintage instruments. |
| Eric Marcotte | A resource centre together with a selection of his rules |
| German Resource Centre | Starting point for a wide range of pictures, literature, manuals, simulators etc. |
| Giovanni Breda's Slide Rules | An Italian Collector's Slide Rules |
| Gonzalo Martin's site 'photocalcul' Slide Rules | A collection of slide rules , mechanical calculators and more ( French Language ). Archive Site. |
| Greg's Slide Rules | A personal collection of slide rules from an Australian collector and a resource centre. |
| History of Computing | A site created by Nathan Zeldes |
| History of Technology Websites | Includes sections on the Halden Calculex, and John Dicas proof rule |
| Hubert | A collection of Faber Castell slide rules |
| Ing. Giovanni Pastore | History and collection of slide rules |
| Instrumentos de Calculo - Coleccion Castares | Photos and information of slide rules and calculators in the collection. Archive Site. |
| Jfzazza's Site | A Spanish collector's site |
| John Current | Archive of John Current's Collection. |
| John Lahr's Slide Rule Collection | An inventory of his slide rules |
| John Oakhill | A Thornton site |
| Jorn's Online Museum | A German museum for abacii and slide rules |
| Kent Walker | Archive of Kent Walker's Collection |
| Keuffel and Esser | Keuffel and Esser Resource Centre |
| Kim's Collection | A Japanese collector's web site |
| linealis.org | A collection of French and European slide rules , particularly Graphoplex. |
| Marks Armbrust's Collection | Includes a Virtual Hemmi 153, K & E 4093-3, and Analon |
| Martin Brenner | Pilot Balloon Resources |
| Mike Konshak's Slide Rule Museum | A wide ranging resource centre |
| Mr Klingon | For Klingons,trekkies and slide rule emulation |
| Nathan Zeldes | An exhibition of slide rules and other historical computing artifacts |
| Nederland Kring | A Dutch resource centre |
| Nicola Marras's Site | A collection of slide rules of an Italian collector |
| Oak Ridge Associated Universities | A collection of Nuclear slide rules |
| Paul Ross (Slide Rule Trading Co.) | For Post and Hemmi afficionados; also spare parts for hemmi, k&e and relay/ricoh |
| Peter Holland | A German trader and collector dealing mainly in Aristo, Nestler and Faber-Castell |
| Peter Owen | A personal collection with some slide rule literature |
| Philip Scholl's Slide Rule Site | Archive of Philip's slide rule site. |
| Robert Munafo's Slide Rules | An unusual page, well worth exploring |
| Roberto Durrer's Slide Rules | Site brasileiro para colecionadores de réguas de cálculo |
| Robert Wolf's Slide Rule Emulator | Magnificent, highly professional software for creating slide rule emulators of any level of complexity. |
| Rod Lovett's Slide Rules | A collection of slide rules showing the rule maker's art in the 20'th Century |
| Ron Manley | A large resource centre |
| Slide Rule Documentation | Archive of a selection of manuals for printing. |
| Slide Rule Operation | Everything you need to know about the Operation of a Slide Rule |
| Slide Rule Store | A range of rules, books, and manuals for sale |
| Slide Rule Universe | A very impressive commercial site with a continually growing slide rule archive |
| Sergei Frolov | Soviet Digital Electronics Museum |
| Stefan Vorkoetter's Site | A collection of Slide Rules, Early Calculators, and Old Computers |
| Steve Burton | A Slide Rule Simulator |
| The Curta Calculator Site | Everything you need to know about the Curta |
| The Gemmary | A dealer in rules and antiques |
| The International Slide Rule Group Archive | A treasure house of information |
| The Oughtred Society | The International Society for all Slide Rule Collectors |
| The Ultralog Project | In memory of Zvi Doron |
| The United Kingdom Slide Rule Circle | To promote interest in slide rules |
| The University of Utah | What Can You Do With a Slide Rule? |
| Tina's Slide Rules | Demonstrating a wide range of interests. |
| Todd Tolhurst | A selection of his rules |
| Tom Bullock's Slide Rules | A random collection of slide rules |
| University of Greifswald | Archive of a German site containing pictures of a range of linear,circular and cylindrical rules. |
| Walter Szrek and Herbert Schneemann' Site | An extensive site on calculating machines |
| Wayne Harrison's Slide Rules | Replica scales of long scale slide rules |
| Archive of William John's Slide Rules | Archive of William John's Collection. |
| A personal collection of Curta mechanical calculators and electronic vintage calculating devices | My personal collection of Curtas and electronic and mechanical calculators and computers |
| Steve Seale's slide rule site | A collection of mostly log-log, hyperbolic, and specialty rules |
| The Slide Rule Guy's Web Site | Selection of slide rules & antique mechanical calculators |
| The National Museum of American History | Details of a wide range of slide rules |
| Other Links | Other Links |