How to get $100 in a month from internet?

I am getting more than $100 a month now but I am not obsessed with getting it and THAT is probably why I am managing to be able to do it. I started in my venture to earn online one year ago and took advice from those already earning. Then with patience, dedication in my spare time (it is not a job but a hobby) and NEVER giving up I got there. It takes a bit of effort and yes you do need referrals. Those you get in time, by helping people, sharing with them and then promoting the places that are doing well for you. If you are obsessed, impatient and want everything today (or even yesterday) then don't even start trying to earn anything. That is my advice and it is the same as the people who were already doing it one year ago told me at the time.

try some sites which pay for surveys its maybe the best way

I have not reach that gold yet. I started this online making money a month ago. I beleive with patient I can make that amount permonth. myLot is another good place for us to make friends and maybe recruiting referrals. But you had to be patient and subtle. Good luck. Forget, if you had the ability to write or making a good website, you can achieve more than that.