hi all. i have about 660$ paid backlink (per month) my web site is in first google page result with some phrases.but about 260$ (per month)of my links ,Did not affect my rating (Positive or negative impact). and my money lost.(300$ of my paid links(per month) had very positive impact) i tried to building and buy backlinks Naturally. note : i had many good ranking with many phrases.but,when i change some of anchor text to targeted anchor text,I went back to page 2 in google search result for some phrases.then i bought new links with new anchor text (fully natural,gradually with not exact match anchor text).but all of new backlinks not affected(Positive or negative impact)! also note that my links are from high quality backlink. remember, i dont recive any message and warning from google webmaster tools. now i have 4 question: 1: how can i come back to good ranking with penalized phrases without more links? 2: if i remove ineffective backlinks ,is it possible i penalize in other phrase and hurt my current ranking? 3: why my new backlinks are ineffective (Positive or negative impact) ?