Closing duplicates between StackOverflow and StackExchange
13649
What to do with cross-site duplicates?
67721
can you have duplicate Call to Actions (CTA) on a Page?
70074
How to handle a deliberate duplicate question
74604
Are user accounts on data.stackexchange.com and Stack Exchange two different entities?
154856
Wording of "possible/exact duplicates" when closing the question
52286
StackOverflowException in .NET
7406
When merging questions, leave the duplicate one as a placeholder
133942
Don't duplicate images on stack.imgur.com
110889
What is the most rampant duplicate on Stack Exchange sites?
138642
Should the "closed as duplicate" message be altered?
2512
Stack Overflow duplicated layer bug
56823
Change how questions marked as duplicates by the asker are represented
91422
Implementing auto correct/complete on Stack Overflow
105400
What should we do about *identical* cross-site duplicates? (i.e., copy-and-paste cross-posting)
20342
Checking the way to stop duplicate names - validation rules or triggers
114336
Duplicate typeset index entries
114294
What's StackExchange-ese for "OP"?