How to use social networking site to market our articles?  

First, you need to write. Practice, get better, edit, improve. If you need an editor, find someone who can give it a look over afterwards, but you are better off learning how to self edit.

Then start using social network sites. Find people on them, real people, interact with them, become friends with them. Finding a single person who really cares and will look at your work without question is a hundred times better then getting a 100 followers who ignore you.

As you build that up, start sharing your writing. And the rest is cake.

You can try to write for Triond. It's very easy to get your articles published there. You can also easily submit them to many social bookmarking sites, also twitter and facebook, thanks to the 'share this' button. In Triond, your articles will not be deleted, as long as you write in English.

Well you could start a discussion about it as you have been here and mention a link to your discussion .Alternatively you could also set up a link to your writing here in your mylot profile.Finally you can advertise by placing a tweet on twitter .Any one of these sites can be used effctively to promote your writing

I can say write using Microsoft word for example, to help you with some spelling and grammar and if you want to use facebook as an advertising site, you have to write something that would interest your friends and make them click your link. Say your friends like playing farmville and you know some tips and trick that you think might be interested in the write one about it.

Try also writing stuffs that are commonly searched in the internet and use them as your tags.

Hope we will be both successful.