• Web page addresses and e-mail addresses turn into links automatically.
• Allowed HTML tags: <a> <img><em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <swf> <swf list>
• Lines and paragraphs break automatically.
• You may embed videos from the following providers archive, bliptv, dailymotion, google, guba, imeem, lastfm, livevideo, metacafe, myspace, revver, sevenload, spike, tudou, twistage, ustream, ustreamlive, vimeo, voicethread, yahoomusic, youtube. Just add the video URL to your textarea in the place where you would like the video to appear, i.e. http://www.youtube.com/watch?v=pw0jmvdh.
• Insert Google Map macro.

• Links to specified hosts will have a rel="nofollow" added to them.

• You may use <swf file="song.mp3"> to display Flash files inline
• Every instance of "<!--tableofcontents-->" in the input text will be replaced with a collapsible mediawiki-style table of contents. Accepts options for title, list style, minimum heading level, and maximum heading level as follows: <!--tableofcontents list: ol; title: Table of Contents; minlevel: 1; maxlevel: 3;-->. All arguments are optional and defaults are shown.
• Twitter-style @usersnames are linked to their Twitter account pages.
• Twitter-style #hashtags are linked to search.twitter.com.

More information about formatting options