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Hi Hasanovic, What's your estimate of the strength of the domains that are copying your content?   In other words, are they coming up in search results for relevant queries ahead of you? Are they coming up ahead of you for phrases in quotes?  The point I'm getting at  is --how sure are you that you are seeing a negative impact from this? I  ask because Google is quite good at knowing what content goes up before other content and there may not be any impact to your site at all.  Google is also quite good at knowing when content on a site is copied from another. If there are 15 sites all using the same copy stolen from you Google will have a hard time ranking those sites above sites with original content--unless those site have substantial domain authority. If you are sure of the negative impact, then be sure you are requesting indexation of new content when it goes live and work on developing the strength of your pages and your domain.