Eberron Introduces several new races into the Standard D&D mix. What follows is a brief run down of each race however no stats will be given as this can all be found in the Eberron Campaign Setting or Races of Eberron Manuals published by Wizards of The Coast and available from all good book and hobby stores...plug plug.

Changelings :

Changelings are subtle shapeshifters capable of disguising their appearance. They evolved through the union of dopplegangers and humans, eventually becoming a separate race distinct from either ancestral tree. They do not possess the full shapechanging ability of a doppelganger, but they can create effective disguises at will. This ability makes them consummate spies and criminals and many changelings live up to that potential.

Kalashtar :

The Kalashtar are a compound race : incorporeal entities from the alien plane of Dal Quor, the Region of Dreams, merged with human bodies and spirits to form a distinct species. They were once a minority among the quori, the native race of Dal Quor, hunted and persecuted for their religious beliefs. Thousands of years after the quori invaded Eberron and the connection between their plane and the material plane was severed, the kalashtar were the first of the quori to discover a means to reach the Material Plane once more. Fleeing persecution, they transformed their physical forms into psychic projections that allowed them to enter the Material plane and possess willing humans. Today, new kalastar are born, not possessed; neither spirit nor human, they are a new race that breeds true.

It took three hundred years for the other quori to discover a similar means to psychically project their spirits out of Dal Quor and possess human bodies, forming the Inspired, while leaving their own bodies behind - much as mortals project their minds to Dal Quor when they dream. For fifteen hundred years now, the Inspired in their vast kingdom of Riedra have continued to persecute and oppress the Kalastar.

Shifters:

Shifters, sometimes called "the weretouched", are descended from humans and natural lycanthropes, now nearly extinct on Khorvaire. Shifters cannot fully change shape but can take on animalistic features - a state they call shifting. Shifters have evolved into unique race that breeds true. They have a distinct culture with its own traditions and identity.

Warforged:

Built as mindless machines to fight in the Last War, the warforged developed sentience as a side effect of the arcane experiments that sought to make them the ultimate weapons of destruction. With each successive model that emerged from the creation forges of House Cannith, the warforged evolved until they became a new kind of creature - living constructs.

Warforged are renowned for their combat prowess, their size, and their single-minded focus. They make steadfast allies and fearsome enemies. Earlier warforged models are true constructs; some of these remnants of the Last War appear in monstrous varieties, such as the Warforged Titan.