Insert will look for keywords that are related to the category of your site and "insert" an affiliate link for the word. You can activate Insert at https://publishers.viglink.com/publisher/settings.
Optimize will route your original product link to the exact same product at whichever retailer will earn you the most revenue. You activate Optimize by clicking the “Optimize Links” box at https://publishers.viglink.com/publisher/settings.
Refer others to VigLink
The single most effective way to earn through VigLink is to refer another publisher. If you refer a new user to VigLink, VigLink will pay you 35% of VigLink’s portion of commissions for the first year. Go to https://publishers.viglink.com/publisher/sites to get your referral link.