An affiliate network must have a Product Search API for us to add support for that network to the Content Egg plugin. The following affiliate networks and stores are on our ToDo list:
Affiliate Egg doesn't require an API and retrieves data directly from the store's website, but you can activate Affiliate Egg parsers as separate modules for the Content Egg plugin. We can also create custom parsers for your merchants.
If your merchant has a datafeed, you can use Feed modules.
You can use the Offer module to add any products manually.