web alternatives to handwritten signature

Hey there. I've got some PDF forms that are being used as insurance applications. They can be printed (to be filled out and mailed back), but they can also be completed and submitted online. I wonder if I can get some suggestions on legal alternatives to a handwritten signature. Maybe by use of a personal question or something?

I know about Adobe's way of digitally signing PDFs, but I think this is a little too complicated for my client, and most people viewing the forms won't be set up to use Adobe signatures anyway.

So how can someone "sign" a form? Thanks.

from a legal perspective you would have to use the built in signing features of Acrobat. Even that is regarded as tennuos by most financial orginisations.

for the most applications you have to provide a written signature.