Help me in SEO/SERP

Hey Friends,
For a keyword rank in Google (SERP), I am on # 12 for past one month. I keep on getting at least 5-10 links daily(From the domains which I used to get backlinks earlier). But no increment, Sometimes, It moves to # 10 and after few hours it used to drop to # 12 again.
But, for another site, I had done the same thing, I have noticed increment in SERP.
Is there any ways to over come this issue? Please advice me.
Thanks

See original post by DASHBOY