If you are using Internet Explorer 6+ or Mozilla, you can use WYSIWYG editing controls that are displayed below. To switch to HTML editing mode, click on the <> icon.
If your post exceeds certain length, it might be useful to break it into two parts. The first part, contained in the area "Story", will be displayed on the main page with link to the story archive, where the full story appears. The additional text is to be stored in the Extended story area.