IMPORTANT NOTE: this web app has been in active use for years, but has only recently being made available to the public on this hosted platform.
To manage the initial growth in an orderly manner, accounts on Brain Annex (hosted on brain-annex.com) are by Invitation Only, for now.
September 2021 UPDATE: Brain Annex is in the process of a major overhaul (being ported to Python, on a Neo4j graph database foundation, with a revamp of the UI.)
As a consequence, to better balance limited resources (and continue to keep the app free) we regret that we need to pause the invitation process. Please bookmark this page and come back in a couple of months. Very sorry for the inconvenience, but we feel confident that the end result will be worth it.