generic-family - can be used in CSSs
serif (e.g., Times) 
sans-serif (e.g., Arial or Helvetica) 
cursive (e.g., ZapfChancery) 
fantasy (e.g., Western, Playbill) 
monospace (e.g., Courier, Lucida Console) 
Using Alternate Fonts - Nyquist
Style Sheets at netscape.com
CSS at w3.org
Compatibility Charts
Serif
NameWindUNIXMac
abcdefghijklmnopqrstuvwxyz Timesx**
abcdefghijklmnopqrstuvwxyz Times New RomanOS
abcdefghijklmnopqrstuvwxyz Palatinox**
abcdefghijklmnopqrstuvwxyz GarmondO
abcdefghijklmnopqrstuvwxyz Bookman(*)*
abcdefghijklmnopqrstuvwxyz ITC Bookmanx
abcdefghijklmnopqrstuvwxyz Bookman Old StyleO
abcdefghijklmnopqrstuvwxyz Century SchoolbookO*
San Serif
NameWindUNIXMac
abcdefghijklmnopqrstuvwxyz Helveticax**
abcdefghijklmnopqrstuvwxyz ArialOS*
abcdefghijklmnopqrstuvwxyz Lucida**
abcdefghijklmnopqrstuvwxyz Century Gothicx*
abcdefghijklmnopqrstuvwxyz Tahomax
abcdefghijklmnopqrstuvwxyz VerdanaE,O
abcdefghijklmnopqrstuvwxyz AvantGardex
Monospaced
NameWindUNIXMac
abcdefghijklmnopqrstuvwxyz Courierx**
abcdefghijklmnopqrstuvwxyz Courier NewOS*
abcdefghijklmnopqrstuvwxyz Monaco*
abcdefghijklmnopqrstuvwxyz Lucida Consolex
abcdefghijklmnopqrstuvwxyz Lucidatypewriter*
abcdefghijklmnopqrstuvwxyz Arial Monospace
abcdefghijklmnopqrstuvwxyz Letter Gothic
abcdefghijklmnopqrstuvwxyz Typewriter
abcdefghijklmnopqrstuvwxyz Typewriter Gothic
abcdefghijklmnopqrstuvwxyz MICR
Cursive
NameWindUNIXMac
abcdefghijklmnopqrstuvwxyz Brush Script MT (cursive)O
abcdefghijklmnopqrstuvwxyz Zapf-Chancery (italic)x*A cursive font on UNIX, but just Italic on Windows
Fantasy
NameWindUNIXMac
abcdefghijklmnopqrstuvwxyz Arial BlackO
abcdefghijklmnopqrstuvwxyz AlgerianO
abcdefghijklmnopqrstuvwxyz PlaybillO
abcdefghijklmnopqrstuvwxyz Comic Sans MSO
abcdefghijklmnopqrstuvwxyz Western
OS - Comes with NT and Win 95 OS
O - Comes with MS Office
E - Comes with Internet Explorer
x - I have it on a basic NT machine but don't know where it came from