Google your name
Yes, amazing as it may sound - for a self-confessed self-obsesser - I haven't tried this before. But I popped "paulgreco" into google and got a couple of nice surprises, aside from the predictable abctales forum results.
First, remember that "kids' stuff" comp I did ages ago on the writing forum. Someone had flagged it up on a kids' poetry listing page and - get this - they just put a link straight to the writing at abctales forum, not even the specific thread. Must be worth at least a soupcon of incoming traffic.
Also, I'm in a webzine I remember being accepted for ages ago, but gave up looking for myself on about a month after acceptance.
Notice the plug for abc here too. You see, you think I hate the place, but I still do my bit whenever I can.
Try your pen name, your real name (the more unusal, the better the success one would think) and see what you get.