I'm not too well versed in all the photo sharing sites but I do use instagram on my phone just for fun. I saw that you can add a hash tag to your photos and then share that with wedding guests; they can upload pics they might take at your wedding. ( ok you all probably knew this already but it's new to me!!!). Has anyone done this or planning to do this? Not in place of a photographer; just a way a fun way for us, and others to see some of our guests pictures. Your thoughts?