i am in a little confusion and i need help and guidance in this matter, i have visited a website tool, which shows the status of the websites, their Back Links and their Alexa Rank and Price, i have checked a website in this tool and as the result i saw some useful information about that website, that was the rank of that website, and back links in google, i want to know that what is this Back links in Google? and how to post Back links in Google? then i saw another website and it's links in google were 3, how to increase links in Google? if any body understand my question and problem please help me to solve it, thanks