This is a major question, which comes in mind of every SEO, link building company and webmaster's that what kind of link page should be on their site or what is the best way of giving outbound link. Every body need links and to get it one has to give back some thing in return unless your contents are so good that the site is voluntarily linked by others. To give back link you need some link page or some other way of giving outbound links. What method should be adopted for outbound links structuring. In my opinion you can adopt following :

1. The best way to give outbound link is to give links within the content page as it is most useful for users who read your site contents. This method of linking is natural and long lasting as search engines want that the pages should be made for users and not for the search engines
2. You can make 4 to 6 resources pages but each page should be on particular theme and object of the page should match the theme of your site. In such a way you will provide the users more related resources on same topic at one place. It will help you in making an authority page.
3. You can also adopt the traditional style which is used in research papers as well as books also where links are given at the end of the page referred to as more references and resources. It gives more information to the users about any particular topic thus enriching their knowledge more. There are many other ways of making link page but the most common is to have a long page with huge list of sites on one single page and linking each site with its title or optimized anchor text without having any relevance between the sites. Such pages never bring traffic rather we just make it only for search engines, which is no doubt a Spam. Google mentioned in its SEO guidelines "Make pages for users, not for search engines ". Search engines are well aware of such kind of link pages and are definitely to be treated by search engines as "Link Farm" and will be penalized.