> Login to Admin -> http://www.yourwebsite.com/administrator
> go to 'content' on the top menu and drop down and click on 'Article Manager.
> in article Manager click on 'NEW'
> TITLE: add your Title - !! this will also be your automatically generated text that is sent to Facebook and Twitter - So make it descriptive
> ALIAS: type in the alias - the format here should be lower case, no gaps and ideally include any keywords you'd like the article to be found by in future
> PUBLISHED: once you select 'yes' and save the item it gets sent to Facebook/Twitter etc. So selct 'no' if you writing a draft copy.
> FRONT PAGE: Unless your adding to the very front of the site select 'no'
> SECTION AND CATEGORY: Select which department the article should go into.
> Now enter your text in the main editor
as it will often copy over HTML tags and could make the website look very odd in some browsers
ADDING A READMORE LINE
If you have a module or page that shows intro text for an article then - like on escape surfboards website 
You'll need to write your intro text and then use the 'READMORE' button. Which will then draw a line under the intro text, then underneath put in your full article. 
> on the right hand side tabs the only thing you SHOULD really add is to the 'Metadata Information'
> DESCRIPTION : as well as appearing in the Google search text box its also the text displayed on Facebook when others share a link.
> KEYWORDS: should enter the top 2 key phrase of a page here. seperated by a comma ','
THEN SCROLL UP AND CLICK ON 'SAVE'
There's loads of vids up on Youtube on this. Here's one that look pretty good
{youtube}3JwQVY0pnPQ{/youtube}
Additionally I've made my own video on Adding an Article on Joomla
{youtube}1BEofCS5JfA{/youtube}