I've noticed that they have yet to add Energon and Cybertron as sub-categories for Transformers toys on Ebay (they have Armada, RID, hell they even have Machine Wars). You can send Ebay a suggestion for new categories here: http://pages.ebay.com/help/newtoebay/suggest.html I get the feeling that they won't spend the time to add a new category or sub-category until they receive a certain amount of requests for it. I recently sent a request that said this: Toys & Hobies / Action Figures / Transformers There have been two new major toylines within Transformers since Armada which are the following: Energon Cybertron I believe adding these two categories under Transformers will help buyers and sellers of Transformers toys on Ebay. If you buy and sell TF's on ebay, please take a minute to send a request similar to mine. Maybe it will help, maybe it won't. Thanks.