I am looking for some social network datasets that each node contains a binary opinion toward some certain issues, like political position, public issues or positive/negative thoughts toward any kind of topic. And the dataset records everyone's opinion across a certain range of time.
For example, a Twitter social network with an opinion score for each user and edges between users represent follower/followee relationships. I want to do some research to learn the difference between timestamps and how opinions change over time.
I think that this may cross the field of social networks and sentimental analysis.
Thanks a lot!