How Social Media Helps?

Social Media
1

HI,
One of my friend had developed a site for his business purpose and he want to promote it through Internet.I want to know how social media helps in promoting so.
Thanks in advance.

2

Hi there,

This is a very broad topic, as there are all kinds of social media out there.
I would suggest starting with a Google search and then posting back if you have specific questions about anything: https://www.google.com/search?q=how+can+social+media+promote+your+business