Is it possible to earn, say, 100 bucks a month from http://www.associatedcontent.com/ For example, how much i can get for one article, by guess
I usually earn about $3-5 per 400 word article. If you submit to digg and stumbleupon, you'll have some decent earnings from the pageview program. You'll get about $1.50 from 100 views.
Definitely, though associated content doesn't pay as much as some other sources do, but you could definitely earn $100, if not more.
You can also get about that much at http://printnpost.com. It doesn't happen immediately. You have to be patient. I didn't join to make cash but more for an experiment, to have a place to publish drivel and to boost some sites. I've had a $280 month to a $99 month.
You could, if you stay consistent. Just have to pay attention to what is in demand. I believe Helium, is also a good site, to make extra money.