in my gaming group we have a Nethermancer and an Elementalist. Naturally a lot of problems were solved with summoning spirits. At first i was improvising the agendas and characteristics of the spirits on the fly, but after a while the summoning process became a bit dull because the spirits had no personality.
In order to freshen things up a bit we invented this .
EDIT: Link about elementals can be found
It contains guidances to create more fluff, depth and personality for the ally spirits in your Earthdawn campaign. Last week when Josh Harrison mentioned that he was working on the chapter about spirits in the new GMG i began to think maybe someone else than us might be interested in such a guide. So i compiled out collected ideas about ally spirits in this article. We have a similar guide on Elementals, but i'm still working on that to make it more readable.
Also, if noone is interested, i dont need to post it.

Note that we're not native english speakers so it might be hard to read sometimes. If you have problems, let me know.