Websites on same I.P (Link Popularity)

Are websites on same I.P facing a potential risk?

[hawk]

I have a network of different websites residing on same I.P. Though they all are different but the links pages of all are almost identical.

These sites initially jumped to a 5 page rank and google showed 150+ links. Now all these have been majorily penalized with 100 links each gone.

What c0uld have happened? Google identified the identical link pages? Anything to do with same I.P?

I had also linked each and every page of all these 30 websites with each other through a 1x1 pixel hidden gif. i.e if every site had 30 pages then there is a link exchange of 30x30= 900 pages. Bad again?

Please advise. I noticed some sites have been listed in blog directories and getting very high rankings and ofcourse good PR. Won't this hurt in the long run? Normal link exchange would be better. Right?

Please advise

Thanks in advance.

[nakulgoyal]

I think this part did the MOST BAD STUFF TO YOU>

I had also linked each and every page of all these 30 websites with each other through a 1x1 pixel hidden gif. i.e if every site had 30 pages then there is a link exchange of 30x30= 900 pages. Bad again?

Stay away from Tricks.

[piskie]

The same IP was almost certainly not a factor in being penalised. It did however make it a certainty that your 1x1 pixel links and your duplicate link pages would be detected sooner rather than later.

The penalty is normal for this type of trickery when detected, in fact a short while ago it would have been more severe like PR0.

[nakulgoyal]

Yes. I agree. All those are OLD Spam techniques. Wonder, people/some seo guys still use the hidden text technique. :-)

[plasma]

Yes. I agree. All those are OLD Spam techniques. Wonder, people/some seo guys still use the hidden text technique. :-)

noframes / noscript / hidden_text
even reciprocal and excessively with the same keywords

still works (unfortunately)