Relish

• Web page addresses and e-mail addresses turn into links automatically.
• Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd><embed><param>
• Lines and paragraphs break automatically.
• Internal paths in double quotes, written as "internal:node/99", for example, are replaced with the appropriate absolute URL or relative path.
• Insert Google Map macro.
• You may insert videos with [video:URL]
• Link to content with [[some text]], where "some text" is the title of existing content or the title of a new piece of content to create. You can also link text to a different title by using [[link to this title|show this text]]. Link to outside URLs with [[http://www.example.com|some text]], or even [[http://www.example.com]].

More information about formatting options