Any info on "archival" (really longevity) small photo print paper? (and inks)

[mrbigstuff]

I'm looking to print a bunch (100s) of photos. I could have a book made by a service, but I'm of the mind that photo paper prints have better color, sharpness, etc.

So, I'm looking for either a 1. service that will print for me, or 2. buying a machine to do this. Each option seeking recommendations. All photos will be 4x6 or close to that.

[cbelt3]

The ink will be the limiting factor. inkjet inks used to be terrible for that. Laser inks are high heat sensitive as well.

[Z]

We printed a number of books via flickr a number of years back and they still look great.

[Acer]

We've done books. The pictures are holding well, but the binding glue is absolute crap.

[mattkime]

Hopefully the service would state what process is being used.

[freeradical]

Cibachrome