How to best implement swear words handler (.NET preferred)?

Question

For an ASP.NET application, what is the Best Practice implementation method for a custom swear word remover/replacer?

If this is a data table solution, is there free resource to get the data? (Similar to finding a public dictionary table that you can import to your system for spellchecking)

Answer 1

Obscenity Filters: Bad Idea, or Incredibly Intercoursing Bad Idea? ^_^

Also see How do you implement a good profanity filter?.