[mushufasa]

this type of resource is actually super useful to idea-stage founders, as it can often be hard to research failed attempts at a domain (typically the websites and assets disappear over time). Even just an index is helpful.

In glancing through this list, some of these make me go "hmm." For example, MySpace is an entry. While it did eventually die, I'm not sure I personally would count myspace as a startup failure -- it got to huge scale, got acquired, and still had niche activity for many years of gradual decline post-acquisition. Certainly, the startup founders and investors had a successful exit.