MLA CE week 6

I enjoyed having the experience of using Flickr, was able to post to my blog by making the photo public, but I have not been able to figure out how to get the photo to Facebook on the public computer I use for the class. I could upload a photo from a CD, but can't figure out how to get it from Flickr. I've seen some nice photos on library web pages, and I think sharing photos from a social occasion is useful, but I'm not sure how useful the photo sharing is in general for medical libraries.