I wish to extract some good info from an internet site and display it on my small site, since this website doesn't support RSS or other means to get it done. The data I am thinking about is within a div which has a specific class. I am searching for a joomla extension which will either make use of an xslt or xpath supplied by me to be able to extract these details and display it. Have you got any ideas, thinking about the intellectual property issues happen to be resolved already?

You can test parsing the page you would like the data from. When parsing search for the div tag who's class/title/id is one thing then record the data within that. Take a look only at that thread about parsing html with php.