Questden.org is the website that this wiki is hosted on, and is a major quest hosting site (at least, we like to think so!).
The site was started under its original name, Tgchan, as an escape/refuge from 4chan, after SDF was banned for continuing Joandventure. It was intended as a place where quests could be run without the rampant stupidity that exists in 4chan. Though it took a while to get rolling, it eventually came into its own as a useful and active community, and has hosted many memorable quests over its decade-plus of existence.
In mid-late 2019, it was decided that the name should be changed due to the -chan suffix becoming more and more tainted as time goes on. After much deliberation and some polls, the name "Questden" was chosen, which it retains to this day.
Related articles: Quest-Discussions, Fanart Thread, Inside the Quest, Advice for Running a Quest.