If you live in the US, go to your local library, and look for a book called Writer's Market. It has listings of literary agents, publishing houses, magazines needing submissions--all the places you can go to get your work published. I expect other countries would have a similar source.
Show me a man who is twenty and not a liberal, and I will show you a man with no heart.
Show me a man who is forty and not a conservative, and I will show you a man with no brain.