If you would like to add or edit a post, or article to your wordpress site, first you will need to log into the wordpress dashboard. If you need help accessing your admin please view "How do I log into my website/wordpress?" and "I lost my login information, how can I get access to my account?". Once you have logged into the dashboard, click the Post menu item on the far left hand side. This is the post listing page, which displays all of the posts currently on your website. If you would like to edit any of these posts, all you have to do is click on the title of the post you would like to edit, which opens up the post edit page, in a simple to use WYSIWYG editor. If you would like to create a new post, press the "add new" link at the top of the post listing page, which will open up a page similar to the edit post page, allowing you to create a title, and write the post content, in a simple to use WYSIWYG editor.