Add "editing in progress" to questions/answers
118077
Provide indicator that another user is editing a post
97892
See question when answering
139624
Adding a way to mark answer as "partially accepted"
68263
Add button for publishing questions (and answers?) on facebook(/Twitter/whatever)
77018
Idea behind "Your vote is now locked in unless this answer is edited"
70503
Add "Answer Later" Tab
31280
New Feature: real time updates to questions, answers, and inbox
147652
Get a notification when new answers are added to other people's question
14173
Show original question during editing a question
110540
Add the ability to cite questions and answers on all Stack Exchange sites
12187
Let me add or change edit summary during edit window (grace period)
128610
Does editing still bump a question?
71206
Suggestions for editing old "Not constructive" question into constructiveness so that it can be preserved
117225
Would like to update answer, but it has 9 edits already
51711
Link to view the edit history of a question
14470
Please add the ability to fold blocks of code in questions and answers
91663
View question when answering