I also liked your piece on distribution services – my own is a specialist (paid for) service for the learning industry – the ones you mentioned are wider mass media services and indeed good at what they do – but I wanted to add that the specialist-industry distribution services often pick up on a growing level of trade media that the larger ones miss – events and conferences, research analysts, blogs, industry experts, commentators and VIPs, forums industry bodies, etc – all really important as many are prolific writers needing content and comments for their sites – and often these are a more realistic target for many B2B suppliers where the wider general media is not realistic for them to get into regularly.