I've been using this pic hosting site for about a month (maybe less). As of yesterday, several of my uploaded pics, one-by-one are being replaced with "Not Available". Even though I'm using the FREE service, I haven't found any reason in the FAQs documentation for my pics to be disappearing. I'm beginning to wonder if the FREE pics on this site have a lifespan of 30 days, or thereabouts. Anybody know what's going on?