If head-f blogs are still available, then:
1) You may use 1st post as table of contents (with summary, conclusions, etc.) pointing to the blog records, individual for for each IEM.
2) There in the blog comments people may discuss specific model.
I think blogs are implemented under the wiki feature in the new forums. There was a big discussion on it after the Huddler switch though I don't remember exactly how it ended. I'll look into it, though I might as well move the thread off-site if I have to separate out the individual reviews ><.
As always, the best and more comprehensive list of IEMs ever! Thanks