Google-like "Did you mean... ?" search algorithm

[cirfu]

On 20 Juni, 00:14, miller.pau... at gmail.com wrote:
> This is a wee bit OT, but I am looking for algorithms to implement
> search suggestions, similar to Google's "Did you mean... ?" feature.
> Can anyone point me to web pages, journal articles, implementations
> (preferably in Python!), or any other resources in this area?
>
> Thanks!

if you mean a spellchecker check peter norvigs homepage.
http://norvig.com/spell-correct.html