Stories By Guyspencer Am I Protected In Any Way If I Publish My Short Stories On My MySpace Page And They Are Used By Others?

Am I protected in any way if I publish my short stories on my MySpace page and they are used by others? - stories by guyspencer

I would like some stories I wrote in my MySpace blog to share, but I fear they will not be the legal means, if someone find them and publish their work elsewhere. Can I sue for damages? Can I force them to deny the stories? In other words, are owned online publication only me to do, or do I something formal and legal status of copyright? Thank you!