Here is the list of many popular code sharing tools. Many of these have pretty code highlighting facility for popular programming languages. Few even allow embedding code into websites.

Paste Bin	Ideone
Mystic Paste	Tny.cz
Code Pad	Gist
Pastie	Snipplr
Smipple	Snipt
dZone Snippets	Byte My Code
Snipt.org	Source Pod
dpaste.de	dpaste.com
Paste2	Pastebin.ca
NoPaste	tinkerbin
Slexy	Code Rater
CodeShare.io	Snip2Code
iPaste	HTML5Snippet
Code Tidy	Chop
Friend Paste	Live Weave
JS Fiddle	Dabblet
Google Code Playground	JSDo.it