Top10 for only two months with the help of co-op

Hi!
About two months ago I started a small experiment with the Co-op Network. I pointed the ads (overall about 20k-30k weight) to about 20 product pages under one domain. Each of those 20 keywords are well competitive, the numer of search results goes from 6.000.000 to 20.000.000. 2 weeks later each of the product pages was in the top 5 (!) at Google for its particular keyword.
This lasts about 2 months. Now they won't show up in the top 100. The domain as it wasn't penalized, it still ranks as it does before my experiment.
Anyone who made similar experiences? What should I do now? Point more weight to the ads? Give it up? Change nothing and hope?
Was there a bigger change in Google's serps the last days?

Vincent

 

So were you able to make a decent amount of income in that time?

 

I didn't track it separately. Why did you ask?

 

If it was a new site it maybe explained with the sandbox effect. I have seen something similar with a site of mine, at first it was ranking well then disappeared and now about 4 months later it started making a slow reappearance.

 

mayb googles algorithym can see you increased so much in 2 months, so she thought ur site was big, but then your impressions stopped increasing so it realised you didn't deserve to be up there...

Google might take into account the acceleration at which you increase, not just how many impressions you have..just an idea

 

although this is not related to this thread but i need help so placing it here also.

i have some websites related to indian bollywood celebrities and mp3 songs and other related issues like movie reviews and music reviews and much more. but one of my website got delisted from google for quite some time. now that i searched the awstats of the site, i came to know that my website is listed in two porn websites as a part of link exchange programme when i was a newbie and tried to build strong backlinks by using a stupid website named linkmarket.net. that was the stupid thing i have ever done for my child website.

now i need help from experts here regarding how to remove links from those porn websites because i think those sites are banned by google and just because of that my website is delisted from google too and how to list again in google.

thanks in anticipation

 

I unsubscribed this thread. See it as closed.

 

Google may credit you with the link initially than once Gbot visits the page again you loose credit for that link because the links are not static.