How we effect on someone ORM (online reputation management)

Hi,

I did SEO work for someone. but he didn't pay half money only. now he not paying me other half. Now I want to take action. please some body help me. I want to effect on his ORM. How can I do that? please let me know.

There are tons of unknown people, such as OP, claiming innocence wanting to have revenge on someone. What if you are the one wanting to wrecking havoc on someone's life or someone's site?
What if you are the one telling us lies?

Not to mention that this is your first post either. Do you came here just to find ways to screw up someone? I bet if you are knowledgeable in SEO, you must know some things about the so-called "negative SEO".

And no, most of us here is not condoning negative SEO. We may use black hat tactics, but we won't destroy someone's life/site by ruining their site/life/reputation. We may beat each other in SERPS, but we gain it through the increases of our site, not by destruction of our competitors. I may be idealistic, but that's what I did.

I really do not like giving people advice on how to get revenge on someone since I do not know the whole story.

Appears op joined site just to get revenge on someone...So sad this is not what this forum is about..

seo is mother and orm is it's child.

-=-