[chisigmail] auto-suggest

[ben ryan]

Hi all,

I am currently working on a proposed implementation of an auto-suggest feature on a web form (in particular, a search).

I'm wondering if there are any articles out there that have analysed various implementation of such a feature and ranked them based on their 
effectiveness - particularly with regard to what are the dos and don'ts for using this sort of feature.

As an example, using a limited set of high level suggestions, versus a more complete set ranked by popularity; activation on focus to the field vs 
activation after the first 3 characters have been keyed, etc.

Any recommendations would be appreciated.

Regards

Ben