I'm building a custom People search page, under which I have lots of pages titled with the names of the staff within the company. I want to be able to pass a parameter in the querystring e.g.:

people?sector=law

And for the page to return a list of matching pages from under the current page which match the attribute 'sector = law'. I want the list of pages to hyperlink to the actual page using friendly URLs.

I don't want to use an addon as I don't want to rely on the addon being or not being updated in future releases.