Mind-mapping.org has moved here (including the wiki about many types of information mapping tools).
Topicscape has a new home here, including the Topicscape support wiki.
WikIT, the mind mapping wiki
A personal journey in information management
How to present information so that people remember and act on it
VPECT and business information systems
Wikipedia - how to edit it (includes a mind map)
Roy Grubb's personal blog of interesting experiences