LMS internet communication

I have been asked to write a short proposal on internet communication for the council of the LMS (London Mathematical Society). More specifically, how the internet can be used to get better communication within the society. I am going to interpret this fairly widely to include communication between the LMS and the general maths community in the UK (given the nature of the internet it is probably more correct to say the world).

An obvious place to start would be with things like RSS feeds and possibly twitter. I plan to put my proposal up here in a few days for more specific comments. However if you have any preliminary comments please post below, or send me an email (edmund.harriss at mathematicians org uk). I am obviously interested to hear from mathematicians, but also from anyone with experience of setting up or using such institutional communication tools.