where can I find data-sets for messages sent from users to other users of online social networks?; the data-set should at least indicate WHO sent WHAT to Whom at When;
say i have a csv file like this :
user1-id,user2-id,message,time-stamp
1,2,"hello","08/04/2014"
....................................
btw; message part could be almost anything that could be SENT in a online social network;
i'm trying to model the information diffusion on a social network with epidemic models like SIR; so every suggestion would be appreciated; and thanks in advance