Combine Points (CPs) are a reward for providing OOC help to the game. You will find them listed with your character information when you log into the game. If you click on the CP link, you will find 3 pages. One of these pages has a number of tiny banners and 1 larger link (link will prompt you to log in, unless you have done so already). Clicking each of these banners and the larger link will give you CPs (but only once every 24 hours).
I can't find the "CP" link on the info page, let alone the 3 pages and the tiny tiny banners and the one larger link.