I have a Network Dance account which has a version of my CV and some photos which people can look at and allows employers to look at.
http://www.networkdance.com/Rohanne-Compson-Bradford
I have made a Flickr account which has a stream of a few photos of me dancing and a headshot so feel free to have a look.
http://www.flickr.com/photos/104937699@N03/
As performers we use photography to advertise ourselves so of course we want to make sure that we look our best in our dance action shots and headshots which we publish online or send to people. This is the first thing people see is a still photo taken of you before they even see your movement style but in this day and age that is how employers may make the first cut when applying for a job. I personally feel that this can be a bit harsh that you are initially judged on a photo before people have to see you move in person as although a photo can show a lot about you I don't think it can show off a true ability that can only be seen through a live or video viewing. Although if someone does see a photo a can tell straight away that for example they are looking for someone who is has brunette hair and not blond hair then I suppose it can be useful and save people spending money to audition for something that they weren't suitable for to begin with.