Great thread idea!
for making treasuries go to Brittanysbest.com and download the treasure chest for free. Icon is added to menu bar. Has number counter & tracks items placed in a treasury, create tags, save it, and send one email notifications to everyone in the treasury. Don't forget to copy the treasury URL and post it back to proper team thread.
Have a pinterest account? Paste that treasury URL into treasurypin.com and post to a pinterest board.
Don't forget the other social media sites, post those treasuries to twitter, and any number of Facebook/Etsy groups.
Here about Orangetwig.com Free link to social media, especially Facebook. Create a poster page to advertise your items, or create a sales flier. Will also put a link on your Facebook managed page where people can see your items for sale from FB and it links it back to your shop.