When you plug your product it's best if you put it in the Products and/or Services offered.
Notice your thread was moved to this forum?
If you plug in another forum, like "General Business Knowledge" or "I'm Looking For......." it's considered innappropriate by the members of this board.
Nothing wrong with posting your product. I'm sure someone, somewhere could probably make good use of it. Just be sure to post it in the right category.
EDIT: Just realized I didn't answer your question.
Spam is an unwanted. That's the only way I can describe it.