Athens.
The final speaker in this session at WebSci '09 is Helen Margetts from the Oxford Internet Institute, whose interest is in what influences people's decision to act collectively (or not). Is it the extent to which others are participating? Related to this is the question of whether use of the Internet makes a difference to such collective action decisions - since it is now possible to know, in real time, how many other people are participating. We can now measure information effects, perhaps for the first time, but what are the appropriate methods for doing so?













