Takes a bit of time for loading. Then its quick.
radio topic map
xray topic map
The following pages are a bit outdated in terms of the actual topicmaps.
Yet, the links should work (could be a bit slow though).
If you find something broken, please
Topic Maps are fast gaining popularity as people find applications for
them in all kinds of different fields. In this and the following pages I will
put together material related to the applicability of Topic Maps for
the Virtual Observatory.
More on VO to come ...