body: **Background story:** 
  
  
  1. Recently I've written some [questions](https://law.stackexchange.com/questions/27391/question-about-using-wikipedia-content-about-cc-by-sa-license-about-its-cop) on law.stackexchange. People wrote answers to those questions, and also wrote some comments. I read these things and got some new thoughts from them. I'll refer to these as *stack\_thoughts*. This is the **first source** of some new thoughts about my question.
  2. Also I wrote partly similar question to some other places through email, and received responses. I read those responses and got ideas which I'll refer to as *email\_thoughts*. This is the **second source**.
  3. I also asked some questions on a talk page in my profile in Wikipedia. There, one can ask for some help, which I did. And I also received answers, from which I got *wiki\_personal\_thoughts*. This is the **Third source**.
  
  
  To normally prolong my working on [this same problem](https://law.stackexchange.com/questions/27391/question-about-using-wikipedia-content-about-cc-by-sa-license-about-its-cop), I need to collect, join, analyze, and use thoughts from all three sources. I need to have possibility, to "formulate" this all thoughts, in all mentioned places. I can do this, in particular by two ways:
  
  
  * First. I can just blindly use them, write about them without mention of the sources where I got them.
  * Second. Before use all these thoughts I can ask for permission from the authors that are my sources. E.g. I can write a message, to each person who replied on my talk page in Wikipedia, about - can I use what they told me, in some other place, maybe on *stackexchange*. They might reply with a yes or a no.
  
  
  **So question is next:**  
  
  How can I utilize normally, ethically, and legally information from these three resources (sources)?
  
  
  I know that there a lot on the internet about using copyrighted text resources - but what about personal email letters, and personal messages?
  
  
  
title: Can I use freely information from personal emails and some personal answers