Extract infomation (PHP???)

Hi, I been racking my brains for a while, and google (for once) hasnt been my best friend, ive been wondering, if a website had information which was constantly updating… how could i extract that information but still have it updating in my site… for example… guestbook entries on one site, and them been displayed on my site aswell…. and they update when a new entry comes in …. Its hard to explain lol! thanks anyway

cURL would work I suppose - System_Meltdown made one for HBH.

Also maybe using the GET function …

PHP and regexes might do the trick. And if you really want the info to be up-to-date to the second, use AJAX.

Thanks for the help fellas, ill look into it asap :D thanks again