>>and it is a pity that Amazon implements all the social networks integration and similar crap instead of useful basic functionality... ok, I stop whining now.<<
I'm with you. As I said in another thread, I find it hard to believe that Kindle users were clamoring for advertising at the end of all their books ("recommendations") and these other online intrusions, without even the choice to turn the new feature off and preserve the reading experience they signed up for.
I'd suggest that anyone who has an opinion on the matter send an email to
kindle-feedback@amazon.com
and tell Amazon what they think.
ApK