Hi, I been adding fresh contents to my blog on a daily basis for the last 14 days. The fresh contents that I added today has being added to a few other ppl blog but they do add a url link back to my blog me the original author. My question is will this hurt my SERPS? Should I contact them to take if off and maybe they can add it back later? I'm so confused.
If they are giving you a backlink, and if they have a decent PR, then I'd just let it be. If they're ranking above your and not providing a backlink - then ask them to credit you, or ask them to remove your content.
Backlinks are a good thing no matter who they come from; at least in my opinion. I would never turn another blog down because of a low PR. If they think enough to include me in a post I am usually quite happy about it...