Description: Quora is a popular question-and-answer website where users can post questions and get answers from a community of experts and other knowledgeable people. Its focus is on gaining and sharing knowledge.
Type: software
Description: TiddlyWiki is a free and open source personal wiki application that runs entirely in a web browser. It allows users to create richly formatted notebooks that contain notes, to-do lists, images, and links for organizing and sharing information.
Type: software
Pricing: Open Source