Fall wedges can be many things:
Charlotte Olympia has a gorgeous pair of evening wedges:

Charlotte Olympia Martha In Stripes Suede and Leather Wedges picture from charlotteolympia.com
If there’s ever a Queen of Wedges, she would be wearing these:

Alexander McQueen Embellished Wedge Sandal picture from alexandermcqueen.com
Nicholas Kirkwood is always about the art of footwear:

Nicholas Kirkwood Patent Leather Wedges picture from nicolaskirkwood.com
40s’ fashion is back, Prada gives us velvet lace-up leopard wedges:

Prada Lace-up Wedge Sandal picture from prada.com
Casadei’s sexy wedges:

Casadei Back-zip Wedge Sandal picture from casadei.it
Totally British: monk wedges by Burberry Prorsum,

Burberry Prorsum Runway Fall 2011 Suede Tassel Monk Wedges picture from vogue.com
Giuseppe Zanotti’s exotic touch:

Giuseppe Zanotti Snakeshin Pointy Wedge Boot picture from giuseppezanotti.com
Marc Jacobs runway boots are so black and white:

Marc Jacobs Runway Fall 2011 Lace-Back Wedge Boot picture from vogue.com
Diane Von Furstenberg offers the perfect fall boots: slouchy, open-toe and nude suede:

Diane Von Furstenberg Weaver Suede Open-toe Wedge Boots picture from Net-A-Porter
Ready for Rick Owens’ urban cool? Here’re the essentials:

Rick Owens Leather Wedge Knee Boots picture from rickowens.com
Yves Saint Laurent knows how to make sexy suede wedge boots:

Yves Saint Laurent Lace-up Suede Wedge Boots picture from ysl.com
Burgundy+ suede leather + wedges + fringes= I can’t take my eyes away from these Isabel Marant boots!!!!!

Isabel Marant Manly Suede and Leather Knee Boots picture from Net-A-Porter