http://www.freerepublic.com/focus/f-news/1184110/posts
http://www.freerepublic.com/focus/f-news/1208187/posts?page=1,50
There is one more (it had 500+ replies IIRC) and I haven't found it yet. Give me some more time.
You make a claim about Michelle Malkin advocating mass internment and even extermination of muslims and then expect me to plow through endless FR commentary in search of your source for her alleged comments?
I don't think so.
If this is the best you can do to produce the factual source for your claim, I think I have my answer already without reading one more word.