25 Feb 11
20 Jan 12 4:48 pm
Do they simply put your site offline ? What are the practical results of having your account closed down ?
Google can either de-index your site meaning it will no longer appear on their result pages or they can lower your rank which means it would be less likely for a user to find your pages.
Secondly , WHY would they close your account down. I have several sites hosted on similar domains with the content basically rewritten, and very similar .. would this be a reason for shutting ALL my sites down ?
It's usually for duplicate content or low-quality content but they will not shut your site down. What they will do is lower your ranking or remove your site from the SERPs. They don't slam down sites for duplicate content alone. There are other factors. You might want to go over these Google Webmaster pages:Google Webmaster - Duplicate ContentSite not doing well in search
Is having a number of similar sites hosted on different domains a black hat technique ?
Black hat techniques would usually be buying links or exchanging links or using automated systems to spam sites with your website's URL, etc.
I don't think you run the risk of getting de-indexed by having similar sites unless you use those sites to funnel traffic to a single website that sells something to users.
Google is into providing quality content to users so make sure your sites, while similar, offer high quality and informative articles to visitors.
Hope that helps. Have a good weekend!