We have cloned our website, meaning we started a new service which is almost identical to the first one. The first one converts videos to mp3, the other one converts them to mp4.
Recently, we got severely penalized by google, for the remarkable similarity of the sites (that's what we think). The 2 sites are on different domains and we would like each of them to grow separately from the other.
AFAIK, this is not the case of canonicalization. What can we do to make the search engines see the 2 sites as 2 different entities and not penalize us for having almost identical content on them?
Please give us a few suggestions or tell us about some best practices in this situation!