Hello @kentjustdoit
You can not post photographies you have found on the web without mention the author and knowing if the image is free of rights. This is not only consider plagiarism, but to steal others' work.
There are a bunch of image banks where you may find photographies free of rights, and apart from that you have to mention the author and insert a link to the image. Anything else is a crime.
Images, text and creativity are not free.