I know I am pushing it but..
In NODES we create about 100 school forums, in each of these forums we add to the DESCRIPTION field an IMG (html) to show the schools logo when you go to this forum.
As like this http://bit.ly/mhKudm
Now I like to have this IMG show on all subsequent THREADS and or POSTS in the forum.
80% of our traffic is from organic google, so the first time visitors do not yet know us, when they read the post it would be absolutely FANTASTIC if they can straightaway tell which school this particular thread is in relation too. Showing the IMG we setup in the FORUMS description would be perfect.