Since past few months I am trying to earn through internet, and I have got success upto a limit.
First of all you need to understand that -
1) you can not earn a full time money on internet ( legally) unless you spend whole of your time( and I literally mean whole of the time) and you have limited desires.
2) if you want to invest in internet earning sites and make money from it, you better be having a good level of skills and patience, unless you gonna lose your money instead of earning some.
So, from my experience you can earn a relatively good amount of money by Cryptocurrency like-
1) Bitcoin
2) etherium
3) dogecoins
Etc.
But you have to keep it in mind that Patience is the key in this business, you can not expect that you spend some time on internet and you will get money for your new laptop or mobile, its gonna be short money and gonna take its time.
Here are some methods-
1) Through Cryptocurrency- freebitco.in Freedoge.co.in Bits for clicks And other sites like it.
2) mouthshut.com( although it delays in payment and I havnt recieved yet, and I have spent more than 1 month. Just for the record ; ) )
Some precautions that you want to use-
1) Beware of scam sites, just surf around a little bit on internet and read reviews about it( mouth shut is a great place to do it) .
2) Beware of phishing of sites, sometimes people want to steal your credentials by cloning of real websites; to avoid it, always be on original website and check the url in url box.
3) Always confirm that the site is legit before you give your bank or paypal or other account information.
So, finally you need to keep in mind that earning through internet is always should be a side kick if you have a real job or any other option to earn money; dont fall into scams, thats only gonna waste your time and probably money.
If you want to invest in sites like freebitco.in with skills you can make good amount of money, a lot of peoples are making it.