I've installed a couple of modifications to this forum that allow you to do some pretty cool stuff with your posts in addition to the normal bbcodes shown in the help for colors, bolding, etc.1. The STYLE Property Inside the Table, Img, Div, Span, etc. bbcodes.
You can add a "style" property to a variety of bbcodes. For instance:
This table has style.
Output:2. Embedding video from YouTube (or anywhere else).
To embed a video from YouTube (or other video sharing sites), you just paste the embed code YouTube gives you inbetween the embed tag with the proper width/height properties in the tag:
<iframe width="560" height="315" src="http://www.youtube.com/embed/AcpGcQgXcyU" frameborder="0" allowfullscreen>
Output:http://www.youtube.com/v/AcpGcQgXcyUIf/As I add additional modifications, I'll post them here. Let me know if you would like to see any additional bbcode capabilities and I'll see if I can make that happen.