These are the top 10 Reliable Websites from which you can study electronics on your own and become an electronic designer or engineer without going for a Degree in any higher institution of learning.

1) www.talkingelectronics.com :
This is the most reliable and comprehensive website you can learn electronics from . The owner of the website is Colin Mitchell from Australia. He doesn't publish a circuit design without testing it. You can directly build his circuit designs on pcb without testing on a breadboard (because he had already built and tested them to be working before publishing them) .

He gives detailed description of the working principle of his circuit designs from the first component to the last and has a section for troubleshooting if the circuits fail to work. The best section to quickly understand electronics on his website is the 'SPOT THE MISTAKE' where he pinpoint errors and faulty circuits from other numerous websites in order to save hobbyists from frustration and waste of time and resources. His designs are very simple, cost effective and reliable. I will advise you to start your journey in the world of Electronics from this wonderful website before exploring other websites.

2) www.homemade-circuits.com :
This particular website is very interactive as the owner (Swagatam Majundar from India) gets to reply each and every comments made by his readers. It is the best site to go if u encounter a problem in your personal projects and need urgent help to rectify the problem. Swagatam is a very honest engineer, he tells u if his design is just a theory or has never been built and confirmed to be working. He will also let you know that a particular design circuit is not his and you can build it without encountering any problem and he is also not shy to tell you the truth if he had no idea about the working concept of a certain electronic device.

He is one of the few Engineers from India that doesn't face criticism from Colin Mitchell in the 'SPOT THE MISTAKE' section of talkingelectronics.com . Most of his designs and innovations are flawless as I have built many and all are working perfectly. He is respected by his followers from all over the world as he gives them joy by solving their circuit problems.

3)www.electronics-tutorials.ws:
As it name implies, it's a tutorial website that teaches the theory of electronics from the basic (meaning of electricity, AC, DC etc.) to the complex. It is good for people who have no background knowledge of electronics as the topics were arranged in such a way that the learner had to go through the first topics before he could comprehend the next.

It's one of the most resourceful electronics websites as it deals greatly in the theoretical aspect of electrical/electronic engineering.
To be continued.