Code snippet hosting?

People often post a function, a script, or a complex query that is 
general enough to be worth keeping but perhaps not appropriate for 
pgfoundry or the documentation.  MySQL has a code snippet service for 
that: <http://forge.mysql.com/tools/>.  I think something like this 
would be quite useful for PostgreSQL as well.  Perhaps the wiki could be 
used for that; I'm not sure.

Ideas anyone?