I see. That makes sense, and yes - that's more of a word-of-mouth referral because there has been previous (legitimate business) contact between those involved.
I just assumed the context of "stolen" here was referring to the normal situation where a stranger rips a picture and uses it for whatever purpose, without credit or connection to the originating photographer.
As for the OP, no it's not safe. But the reference to Facebook is pointless. The subject line could have been easily written as:
"is it safe to post your photos on the internet as advertisement ?"
The only difference between Facebook, Flickr, and your personal website, gallery or blog is traffic.
Your photos can be stolen anytime from anywhere, even right here on POTN.
The difference between facebook/myspace (ie social networking) and other random internet spots is that people use pics (portraits anyway) to share, show off, and discuss. Its quite valuable. My website in fact goes neglected because facebook is where my business is.
Random pics? I agree. There's not much money in that anyway, IMHO.
) so I think a dedicated page for photography is the way to go. I like the separation of the two.
