Why can't you speak to the marketing team of some large organisations unless you have a name?
On occasions I have tried to contact large technology companies because I wanted to discuss a social media idea with a member of their marketing team. But reception will not give me a name so I cannot even make contact. Why are companies making themselves so inaccessible to the outside world. What are they frightened of? It reflects their attitudes to blogs and putting comments on blogs and letting staff surf the web at work. You would think that you are asking them for the source code of all their special products. Companies need to open up online and offline and enter into meaningful conversations in order to give themselves the chance to grow develop and gain influence.