I like Meow, and am currently waiting for samples of Lumiere and UGloGirls. I've chosen these because they're apparently good for dry and sensitive skin, and have comparatively good ingredients. I've also used Everyday Minerals, which was too drying for my skin but I know others with normal/oily skin have really liked.
* Meow Purrfect Puss ingredients: Mica, Titanium Dioxide, Iron Oxides
http://www.meowcosmetics.com/
* UGloGirl ingredients: Mica, Titanium Dioxide, Zinc Oxide, Silica, Iron Oxides, Ultramarine Blue
http://www.uglogirl.com
* Lumiere ingredients: premium grade serecite, titanium dioxide, zinc oxide, iron oxides, boron nitride, silica, magnesium stearate, squalane
www.lumierecosmetics.com
* Everyday minerals ingredients: Mica, Titanium Dioxide, Iron Oxide, Zinc Oxide, (may contain Ultramarines).
http://www.everydayminerals.com
And from EDM, here's the ingredients of some other MMU from well-known/commercial brands:
* Loreal Bare Naturale Foundations: Titanium dioxide, Zinc oxide, Talc, boron nitride, Dimethicone, Carnaba wax, Cetyl dimethicone, Trimethyloxysilicate, Trisocetyl citrate, Alde baradensis leaf juice, Tocopheryroyl, Panthenol.
* Neutrogena Mineral Sheers Mineral Powder Foundation: Mica, Bismuth Oxychloride, Iron Oxides, Titanium Dioxide, Polymethyl Methacrylate, Retinyl Palmitate, Tocopheryl Acetate, Ascorbic Acid, Pantothenic Acid, Soybean Flour (Glycine Soja), Silk Powder, Zinc Stearate, Sodium Dehydroacetate, Methylparaben, Propylparaben
* Sheer Cover Mineral Foundation: Titanium Dioxide, Bismuth Oxychloride, Mica, Methylparaben, Trisodium EDTA, Iron Oxides, Ultramarine
* Bare Minerals Foundation: Bismuth Oxychloride, Mica, Iron Oxide, Titanium Dioxide
If you want to know more about MMU in general, theres a MMU forum here:
http://forums.delphiforums.com/mineralmania/start
There are also specific forums for some brands, like Meow