Future Portal Link Collection

This topic is for collecting links for the Future Portal project. Add links (ideally with descriptions and tags) as post, or edit this top post to add new links.

It seems that these links can be categorized according to topic, or as to the type of resource (article, blog post, blog, community site, app, book, and so on). This suggests that later on, we should try to create a really good database for storing futurist references.