"I am not a devotee of FB, so I speak with little authority, but aren't postings to FB legally the property of FB? So would taking FB images and using them for the PBS wiki be a violation of FB's personal thingamy?" Yes, it would. "Just an example to prove the usefulness of FB: I've come across about 6 new spp of Zingiber via FB friends and group postings etc. I'm in contact with the expert on this genus and have been passing info on these as well as trying to source material for him. I've already gotten a few and have important info on them. They would have made there way to taxonomists eventually... In a decade or two, and without any collection data etc. I've come across several other new species of gingers on FB often by accident just looking at friends stored photos. It's a great resource if you use it well. " This makes me remember that on several occasions I have seen plundered material from the wild proudly exhibited by their owners, people that would not know how to have a pansy flower yet having the money had no remorse in paying good prices for rare bulbs.