Just to know if someone is doing it in any better manner, When you ask for links from other site owners how you link back to them. I means where/how you keep their link, it is the _ _ _ _? (1) Link pages. (2) Change the name to resource (3) Index page with tags useful links (4) Embed them directly into content paragraphs.
I would avoid placing them on a page full of links and nothing else. Sidebar/footer links aren't great either. The best thing for them would probably be contextual links (links placed within content) preferably on it's on page with useful content related to the link.