I have never submitted my own posts to DZone, but they have been submitted by others. It isn't in my top10 referrers. My impression is that most of the audience there is Java developers looking for technical posts

Being the first to submit it to delicious is also a good idea, with good tags. Whoever submits it first their title will be the prevailing title for the post with future re-posts, so it is a good idea to be the first to do it and set your own title before somebody bastardizes it (this is the reason why I submit my own posts to HN)

Submitting to Google+ is also a good idea since it is a very good way to get the Google crawler to visit the page and index it.

My own routine after I publish a post that I think may be interesting to others is HN, twitter, delicious and Google+.