How does Google determine to index pages as discussion pages?
I am building a question and answering site by myself. 
I want to make this site indexed as a Q&A site or Forums by Google, which can be retrieved when using the "Discussions" in Google. In my personal experience, Google Discussion Search is a pretty useful function when I want to get others' real opinions or experience. 

However, I have no any idea on that how Google determine one site as Q&A/Forum or one page as Q&A/Forum page. I searched a lot on Google, but there is little related information discussing this issue. Do you have any idea or reference on that?

Thanks!

Best,
Jing

How does Google determine to index pages as discussion pages?
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I am building a question and answering site by myself. 
I want to make this site indexed as a Q&A site or Forums by Google, which can be retrieved when using the "Discussions" in Google. In my personal experience, Google Discussion Search is a pretty useful function when I want to get others' real opinions or experience. 

However, I have no any idea on that how Google determine one site as Q&A/Forum or one page as Q&A/Forum page. I searched a lot on Google, but there is little related information discussing this issue. Do you have any idea or reference on that?

Thanks!

Best,
Jing
