Ceramics tend to be a bit pricey, as you probably already know, and are fairly specialized -- great edge-holding but potentially fragile.
What sort of ceramic blade are you looking for? Kyocera makes ceramic kitchen cutlery ("Kyoto Ceramics") -- they may have been the first to make ceramic commercially available. I believe you can reach them at
www.kyocera.com.
Or you can find them at sites like
www.agrussell.com or
www.knifecenter.com -- they're fairly available.
Ceramic folders -- I know Boker makes two or more designs. You can probably see pics/ info at either site above, or maybe also at
www.skylandscutlery.com. Others might be able to suggest more relevant sites.
Mad Dog knives makes ceramic composite fixed blades, which are reputed to hold an edge till the end of time and are supposed to be far tougher or impact-resistant than other ceramic blades. You can see them, I believe, at
www.knifeandtool.com.
hope that helps --
Glen
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"What's so funny 'bout peace, love, and understanding?" -Elvis Costello