+5  A: 

In unicode there are lots. How about:

  • Black left pointing index: U+261A ☚
  • Black right pointing index: U+261B ☛
  • White left pointing index: U+261C ☜
  • White right pointing index: U+261E ☞

just for a quick example. Heck, there is a whole range dedicated to various kinds of arrows (2190–21FF), which can easily be used as bullet points. I guess you can start to browse unicode code pages - there are a lot of characters out there, though. I expect you'll have a hard time finding everything anybody might use.

Carl Norum
+3  A: 

I've seen +, >, and # used to indicate bullet points.

Michal
+1  A: 

Even ordinary windows, code-page characters like: º+·˙̣·۰۠۟۟•▪■□►●○▬─
can be used -- Especially if CSS is used to size and position them.

.
Also, pretty much the same significance as a bullet point, but ordered, is outline notation:

1.
2.
2.1
2.1.A
2.1.B
etc.
Brock Adams
+1  A: 

Dashes have a Unicode category of Pd. As of Unicode 5.2, there are 21 of these characters:

  • U+002D - HYPHEN-MINUS
  • U+058A ֊ ARMENIAN HYPHEN
  • U+05BE ־ HEBREW PUNCTUATION MAQAF
  • U+1400 ᐀ CANADIAN SYLLABICS HYPHEN
  • U+1806 ᠆ MONGOLIAN TODO SOFT HYPHEN
  • U+2010 ‐ HYPHEN
  • U+2011 ‑ NON-BREAKING HYPHEN
  • U+2012 ‒ FIGURE DASH
  • U+2013 – EN DASH
  • U+2014 — EM DASH
  • U+2015 ― HORIZONTAL BAR
  • U+2E17 ⸗ DOUBLE OBLIQUE HYPHEN
  • U+2E1A ⸚ HYPHEN WITH DIAERESIS
  • U+301C 〜 WAVE DASH
  • U+3030 〰 WAVY DASH
  • U+30A0 ゠ KATAKANA-HIRAGANA DOUBLE HYPHEN
  • U+FE31 ︱ PRESENTATION FORM FOR VERTICAL EM DASH
  • U+FE32 ︲ PRESENTATION FORM FOR VERTICAL EN DASH
  • U+FE58 ﹘ SMALL EM DASH
  • U+FE63 ﹣ SMALL HYPHEN-MINUS
  • U+FF0D - FULLWIDTH HYPHEN-MINUS

Bullets are a lot more complicated, as the others have mentioned.

dan04