Here's a snippet of the HTML escape characters taken from a cached page on archive.org:
< | less than sign <
@ | at sign @
] | right bracket ]
{ | left curly brace {
} | right curly brace }
| ellipsis …
| double dagger ‡
| right single quote ’
| right double quote ”
| short dash –
| trademark ™
¢ | cent sign ¢
¥ | yen sign ¥
© | copyright sign ©
¬ | logical not sign ¬
° | degree sign °
² | superscript 2 ²
¹ | superscript 1 ¹
¼ | fraction 1/4 ¼
¾ | fraction 3/4 ¾
÷ | division sign ÷
” | right double quote ”
> | greater than sign >
[ | left bracket [
` | back apostrophe `
| | vertical bar |
~ | tilde ~
| dagger †
| left single quote ‘
| left double quote “
| bullet •
| longer dash —
¡ | inverted exclamation point ¡
£ | pound sign £
¦ | broken vertical bar ¦
« | double left than sign «
® | registered trademark sign ®
± | plus or minus sign ±
³ | superscript 3 ³
» | double greater-than sign »
½ | fraction 1/2 ½
¿ | inverted question mark ¿
“ | left double quote “
— | dash —