My opinion about posting pictures…
I just only wanted to share my opinion about this fact. I study journalism, so I have recently study a subject called “Info Sources” (I must to say that i passed it;)).
On the internet (blogs, portals, forums…) isn´t mandatory to mention the photo´source, exept if the picture is from an agency/photographer and it has got rights, and you are also using it for profit/economic benefits. But it´s a significant details and very ethic the fact of mention where you fond that picture, specially if you upload a photo retouched by someone (specially painted by photoshop, which is a very hard and difficult work as you must to know)
When you retouch a photo to make others happy in tumblr or wherever you are, is really disgusting to see someone use it and not even mention your name, afther having spent my time improving the quality.
I guess that the referred person will recognize that I am talking about him/her. Thanks.