Lesley, unless something is "copy righted" and granted by law to the author for a specific period of time with specific language prohibiting it being copied, then, there is no harm in posting it here. At least that's the way a copy right works in the U.S.
So, look at the bottom of the pain scale or what ever it's called, to see if there is a mention of it being copy righted and prohibited from being duplicated. If there is no such statement then it's OK to copy.