I have my own website, the link is in my sig but you can find it at:
http://paulhaese.net/
I don't sell my images, I don't consider them good enough to sell to anyone.
I do enter competitions, but mostly I just enjoy looking at them and showing them to other people.
I have been published more times than I can remember (I don't keep a list of publication) and always seem to have some subscription coming in as a result. Mind you never made APOD yet and have submitted some good images of Jupiter. Not sure why that is happening though.
What I most like doing is showing non astro people what I get to see quite a lot. I like to educate the general public with the images where I can. It's all part of my putting something back into astronomy and working on the idea of reducing light pollution.
I hope that answers your questions Jen