You are your own best resource, so use yourself. Hyperlink other resource pages of your site that are relevant to the copy. This will benefit the reader, increase the amount of time they spend on your site, and help you with the search engines.
Incorporating links to external resources will benefit the reader and help you in two ways:
• They provide third-party validation of your “expertise”
• They afford the opportunity to pick up a reciprocal link or an affiliate program.