Concern for user rights due to copyright filters for Web 2.0 - I don't like either the greedy vultures of the media companies or those of the Web 2.0 companies. Neither really cares about the content or the actual customers - both are only interested in how they can make as much profit as possible with as little investment of their own from the creativity of others. Choosing between the big media companies and the big Web 2.0 platforms is like deciding between Microsoft and IBM - just because one of them has swallowed more chalk than the other, that doesn't change the fact that both are wolves. Those who think differently should read the Terms of Service of various Web 2.0 platforms - content appropriation and cover-your-ass at the expense of the user are common practice. Believing that Google and Co. are the good guys is highly stupid.