The Mirador Interactive Museum (MIM) of Santiago, Chile is in twitter: @MIM_Museo. I'm pretty sure they do keep record of their social network (they also have a profile page in Facebook: http://bit.ly/duct2y ). MIM's website is http://www.mim.cl
MIM is a very young museum (opened in 2000) and is the most visited museum in the country even when it is located way far from the most active areas of the city. Its focus is on arts, science and technology and is basically an educational centre. Unfortunately the website is in Spanish only but I'd be happy to help reach any information you or the other members would like to have. I'm not a member/employee of the museum, but a big admirer of their work.
Hope this helped in any way!
Alejandra Mery K.
Doctoral Candidate in Interaction Design, University of Technology Sydney (Australia)
(614) 501 79153 / (612) 9514 8606
Thank you Alejandra,
The MIM looks wonderful! I am looking for museums that have already undertaken research on their Twitter followers' and particularly their occupations. If the MIM have done this i'd be really interested to hear about the results, but I have a feeling this isn't something that they, or possibly any museums, have done yet.