internet monitor and internet logger

Hi all,

one of the interesting and needed project for arduino would be: how could I connect arduino as internet client to a site, getting the entire site index.htm and to search a word in the main page, filter the word (as data) and send it to SD file (logger file)? Is it possible for arduino to do this logger? I couldn't yet obtain a connection to a site via router.

Could you please help me in this way?

Thank you,
Best regards,