Have you UK photographers read all about this?
"Orphan works" are copyrighted works whose owner is unknown; this would create a means to license them. The extension of copyright/performers' rights proved controversial in the Lords.
If somebody finds your image online and you have not marked it in such a way that it is easily traceable back to you being the owner of it, then said person can use your image as they like apparently. Even publishing it for financial gain. This includes when you upload your images onto your own website, then somebody takes it and uses it on their own website or social networking profile, if it is then found by a publisher and no link back to you is made then they will be able to use it.
Is it sufficient to put your name on a photo now? What if your name is John Smith, how will they find you?