Link site in same server will i be penalized?

I have a few websites and some of them are high PR and and some are very low. FYI all the websites are hosted in the same server. My question is, if i link them together will i be penalized?

 

I don't thinks so, pagerank is pagerank, but I wouldn't loop ANY links.

if you have higher pr sites pointing to lower it should be fine.

 

Thanks... but what do you mean by "loop"?

 

loops as in pointing each one towards the other (reciprical linking)

 

Do you mean if i loop them together it will effect my SERP? will i be penalized for that?

 

your sites will not be penalized but your link quality will decrease for sites in the same server. This is called C Class Ip Block.

 

Is it a bad thing? So what are your suggestion? to link or not to link?

 

It is not bad but not very usefull. Google not only looks your ips but also looks at domain registrations. If you link them all together, you should make some differences domain registrations. Change admin, contact details of each domain. Try to move domains to other registrars.