Many thanks for your reply here.
You have been really quite generous in your feedback - were you just being kind? I have a feeling that the site really needs to get overhauled and am speaking to a designer just now.
The message is a key issue, because I have had quite diverse feedback. On the whole, I think the site communicates what we do and how we do it, but some people find it a little too academic in its approach. The next draft will really need to tone down a bit, but I think it is important to be true to your way of doing things.
In terms of social accounts, I make use of Linked In, Twitter and Facebook and have started to look at YouTube and Pinterest but am perhaps less clear on how they might help. I realise that there are an increasing number of other sites (stumpleupon, etc) but have to say that I am not sure how they all fit together- wouldn't it be great if all these things could be managed from a single platform?
Thanks again for your feedback and advice - it's greatly appreciated.
Mark A Taylor