To see what they look like and the various types, stop by your local coin collectors shop. Once you know what you want, you can find sources on the web. Also, C.T. Rodgers is a chip dealer and also handles collectors supplies. He will be glad to send you a catalog. He has a link on this bulletin board.

Basically, you can use 20 pocket or 30 pocket pages. 20 pocket require you to put your chip in a plastic 'flip' or a cardboard holder first, then slip it into the pocket. With 30 pocket pages, you can put the chip directly into the pocket and it will stay. Both types fit any 3-ring binder.