I have followed the instructions re. Wikimedia Commons but will I see a picture on my blog or a string of letters and numbers?

I have found Flickr and the copyright issues interesting and more appropriate for my job/life but I am still not sure how much I will use them past 23 Things.  I already download my pictures onto Facebook for my friends to see and I have no intrest really in having a wider public - but maybe I will be missing an opportunity to be discovered!