Hi! Is there any way to keep an unfinished mirror of a site updated only with
new or modified pages? I just don't feel lik downloading a whole news site,
'cause I don't need the older parts. 

(To make it clearer: I need to 'monitor' some sites, and I thought, I could
download only new files to them... but mirroring first wants to make a
complete mirror, which is a great waste of resources).

Thank you in advance for all suggestions!

C.