If I had 200 blogs that I wanted to interlink without being penalized, what are my options? Is there a hosting service that will spread my sites acorss multiple C Class ranges or do I need to setup multiple hosting accounts from different companies? Thanks.
Probably you need to split your sites to different hosting companies - but it will be hard to manage and require some extra time to manage it all, renew etc...
My cousin, who had a large number of domain names interlinked them by making six groups. He had different registrars and different hosting services so his strategy was adding just one link to each domain, that link leads to a page in which those ten groups are listed in a directory-like fashion, with each group, at a time, linking to its corresponding domains. Such directory had it's own exclusive domain hosted apart and with its own IP and, well, this worked for him getting all his sites indexed and boosting his pagerank. I talk in past time because he later regret wanting to keep a range of his domains anonymous and spent hard time de-indexing domains, task in which he has not succeeded yet.