I was searching for closed beta sites and I found them.
These are the beta sites that were closed and their data dump of questions is downloadable on Area 51
Game of Go
Libraries & Information Science
This one's data dump is not downloadable but it's merged with an existing site
Now my questions are:
- how do we choose what to do after closing a beta site?
- How do we choose which of the above four actions is best for a closing beta site?
- When do we merge the content of a beta site with an existing site after closing it?
Note: I had asked this question on Area 51 Discussion but they advised me to ask it here