Plurktionary

Link to a user: Place @ symbol before username with no space between
Example: @username
Bold: Place two asterisks (**) on either side of text to be bold. (don’t place punctuation just before closing **)
Example: **bold text**
Italics: Place a single asterisk (*) on either side of text to be italicized. (don’t place punctuation just before closing *)
Example: *italicized text*
Underline: Place two underscores (__) on either side of text to be underlined. (don’t place punctuation just before closing __
Example: __Underline Text__
Text Link: Enter full URL followed by the text to be displayed in the Plurk.
Example: http://daisyolsen.com/plurktionary (Link to Plurktionary) will display at Link to Plurktionary