> 6. Possibly updates to sites I visit regularly (equivalent to a highly unreliable RSS client)

This is what annoys me the most in Google Now. It's a damn black box. I'm happy that they provide "updates to sites I visit regularly", but even more than those updates I'd like to see the list of those sites. Without that, and any kind of information about how reliable this reporting is, I have no way of trusting I won't miss an "important update". I just don't know, and Google Now does nothing to reassure me.