I would like to add to my vote (for Nifty's sake) that it would be extremely helpful to gardeners of all level to be able to search for a certain plant, flower, or tree in the desired Propagation Thread and easily find the answer.
At this point, with no specific area for propagation, searching for a certain thing might just get you a picture, and not everyone uses big words like 'propagation' when giving good information that could easily fit into that subject. So searching for 'propagation' doesn't necessarily find the information you desire.
It also seems to me that beneficial section like that would make the site more useful to drifters, thus making them regular, thus bringing more traffic to TEG. :rainbow-sun