Special Characters

For the copyright symbol (©), just type "&" followed immediately by "#169" in your post. If we put the ampersand and #169 next to each other in an example, it will display the © not the code. If you want it to appear really correctly, you can also make this a superscript with a bit of HTML coding:

^{& followed by #169}
1969^©

Another common symbol is the trademark symbol: ® which is & followed immediately by #174.

Complete list of ASCII codes for Special Characters
http://webdesign.about.com/od/charactersets/l/bl_htmlcodes.htm