Alternatives Updated +Created
These are websites that offer somewhat overlapping services, many of which served inspirations, and why we think something different is needed to achieve our goals.
Notably, OurBigBook is the result of Ciro Santilli's experiences with:
OurBigBook could be seen as a cross between those three websites.
Quick mentions:
Static website-only alternatives:
Conceptual:
Stack Exchange Updated +Created
Stack Exchange solves to a good extent the use cases:
  • I have a very specific question, type it on Google, find top answers
  • I have an answer, and I put it here because it has a much greater chance of being found due to the larger PageRank than my personal web page will ever have
points of view. It is a big open question if we can actually substantially improve it.
Major shortcoming are mentioned at idiotic Stack Overflow policies: