I know of a few small shells which are dedicated to announcing to others when/where Odin pops, as well as Behemoth up-time...
Why so many? The populations are so small generally, so they seem relatively ineffective on their own.
One I am in is called 'Primal Alert!'
How many others on Hyperion are out there, and are there any interested in merging into a monster shell that can tackle this type of content more easily?