Martijn van Exel
Events7
Conferences1
Talks13
Years active2019–2026
Talk freshness916 different talks in 7 · 1 circuit, 24 monthsMiles between events13,3915 in-person events · 2 countriesThe year around now
Talks in the past 12 months and announced talks ahead, one row per conference, January to December. Hover a mark for the talk.
Appearances by year
- State of the Map
Talks
| Date | Event | Conference | Role | Title | Links |
|---|---|---|---|---|---|
| Aug 28, 2026 | State of the Map 2026 | State of the Map | speaker | Announcing MapRoulette 4! [MapRoulette](https://maproulette.org/) is a micro-task platform for OpenStreetMap. | |
| Jun 11, 2026 | State of the Map US 2026 | State of the Map | speaker | Announcing MapRoulette 4 | |
| Jun 11, 2026 | State of the Map US 2026 | State of the Map | panelist | Building Communities Panel Discussion | |
| Jun 19, 2025 | State of the Map US 2025 | State of the Map | speaker | 15 Years of OpenStreetMap US | |
| Jun 19, 2025 | State of the Map US 2025 | State of the Map | speaker | Building a Local OSM Community | |
| Jun 19, 2025 | State of the Map US 2025 | State of the Map | speaker | MapRoulette | |
| Jun 19, 2025 | State of the Map US 2025 | State of the Map | speaker | Meet Your Mappers! | |
| Jun 6, 2024 | State of the Map US 2024 | State of the Map | speaker | Using MapRoulette to Strengthen Communities | |
| Jun 6, 2024 | State of the Map US 2024 | State of the Map | speaker | Welcome to State of the Map US 2024! | |
| Aug 19, 2022 | State of the Map 2022 | State of the Map | speaker | 10 Years Of MapRouletteMapRoulette was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the import of TIGER road data in the United…Show lessMapRoulette was first announced at State of the Map US in 2012 as a tool to solve the many errors introduced by the import of TIGER road data in the United States. Since then, MapRoulette has been used for map improvements and guided data imports around the world. | |
| Apr 1, 2022 | State of the Map US 2022 | State of the Map | speaker | A MapRoulette Travel Guide | |
| Sep 6, 2019 | State of the Map US 2019 | State of the Map | speaker | MapRoulette: Microtasking for OpenStreetMap | |
| Sep 6, 2019 | State of the Map US 2019 | State of the Map | panelist | OpenStreetMap 🥰 Government Panel |
Frequent co-speakers
| Speaker | Shared events | Shared talks | Last together |
|---|---|---|---|
| Maggie Cawley | 6 | 2 | 2026 |
| Minh Nguyễn | 6 | 1 | 2026 |
| Yuri Astrakhan | 6 | — | 2026 |
| Chad Blevins | 5 | — | 2026 |
| Steven Johnson | 5 | — | 2026 |
| Jacob Hall | 4 | 2 | 2026 |
| Diane Fritz | 4 | 1 | 2026 |
| Jake Low | 4 | 1 | 2026 |
| Jeff Meyer | 4 | — | 2026 |
| Jennings Anderson | 4 | — | 2025 |
| Alyssa Castronuovo | 3 | 1 | 2026 |
| Derald Dudley | 3 | 1 | 2024 |
| Harrison Devine | 3 | — | 2026 |
| Ilya Zverev | 3 | — | 2026 |
| Jazzy Smith | 3 | — | 2026 |
Speakers with the same name are merged into one entry, so this page may combine more than one person. Affiliations are shown as each conference listed them.