Good site for learning html ( verified )

Most of us might have seen the .html/.htm extension after the webpage we might have opened( not necessarily every page should be of html).
It is the main markup language for creating web pages and other information that can be displayed in a web browser.
If you are interested to understand the language in which a web page is written just by looking at the code or even edit them to create your own web pages by making simple changes to the web pages you like, Its not necessary to learn the language completely. you just need to know the basics of that which is very easy.
You can cross the beginner level and understand the simple page codes in a short span of 1 day. 
You can find the tutorials for this at http://www.htmldog.com/. It is advisable to download the beginner PDF versions which are available for free on Google. All the best friends. 

Do you really need it?

You might be asking yourself, do I even need to learn a programming language to become a hacker?
 The answer to that is both yes and no. It all depends on what your goals are. Nowadays, with all the point and click programs out there, you can be a fairly good ethical hacker without knowing any programming. You can do some effective hacking if you understand all of the security tools very well. Even if you understand what’s going on in the background of these programs, most people will still classify you as a script kiddie. Personally I think you should learn some programming. Even if it’s the very basics, it’ll give you a much better understanding of what’s going on. Also, once you learn how to program well, you’ll be able to develop your own exploits, which is great in many ways: 
1. You’ll be considered an elite hacker. 
2. Imagine a black hat discovers a vulnerability and codes an exploit for it that no one else knows about. The black hat would be able to take down thousands of machines before anyone discovers and patches the vulnerability. 
3. You will feel so much more satisfied having created your own program or exploit. I promise you this. 
So my advice is, don’t settle for being a point and click hacker. Take some time to understand even just the basics of programming and an entire new world of hacking will open up to you.

Social Engineering - basic idea

HACKING------SOCIAL ENGINEERING

Social engineering is the art of manipulating people so they give up confidential information. The types of information these criminals are seeking can vary, but when individuals are targeted the criminals are usually trying to trick you into giving them your passwords or bank information, or access your computer to secretly install malicious software–that will give them access to your passwords and bank information as well as giving them control over your computer.

Criminals use social engineering tactics because it is usually easier to exploit your natural inclination to trust than it is to discover ways to hack your software.  For example, it is much easier to fool someone into giving you their password than it is for you to try hacking their password (unless the password is really weak).

Security is all about knowing who and what to trust. Knowing when, and when not to, to take a person at their word; when to trust that the person you are communicating with is indeed the person you think you are communicating with; when to trust that a website is or isn’t legitimate; when to trust that the person on the phone is or isn’t legitimate; when providing your information is or isn’t a good idea.

Ask any security professional and they will tell you that the weakest link in the security chain is the human who accepts a person or scenario at face value. It doesn’t matter how many locks and deadbolts are on your doors and windows, or if have guard dogs, alarm systems, floodlights, fences with barbed wire, and armed security personnel; if you trust the person at the gate who says he is the pizza delivery guy and you let him in without first checking to see if he is legitimate you are completely exposed to whatever risk he represents. For more details just wiki it... or  visit http://www.webroot.com/En_US/consumer/tips/secure-what-is-social-engineering to know more for common ways of attack the hacker does.