Lately I have been looking at a lot of sites selling low priced prints by emerging artists. Here are some pieces and resources that I liked. Most of the prints are part of limited editions.

Tiny Showcase
http://tinyshowcase.com
Most of the pieces actually are tiny.

“Tug O War” by Jennifer Davis. $20
6″ x 7.5″ (plus border for framing)

“Genoa” by Andrew Holder. $20
6″ x 4.5″ (plus border for framing)

The Working Proof
http://blog.theworkingproof.com/
15% of each sales goes to a charity of the artist’s choice.

Whale Hill by Julia Pott. $40
15% of the sale of this print goes to the Transportation Alternatives.

Gathering by Erik Otto. $75
15%* of the sale of this print goes to Architecture for Humanity.

Paperwork
The collection is small but they offer various sizes. A new print is added weekly.
http://paperwork.ugallery.com

Nuclear Landscape by Katherine Widen. $20 – $500 depending on print size.

20×200
http://www.20×200.com/
This one has been around for a while. They also offer different print sizes. There is a lot to wade through on this site.

Rift #26 (Heimaey Houses) by Marion Belanger. $20 – $1000 depending on print size.

Recollection of the Battles Fought Maintaining the Home Front by Colin Blakely. $20 – $2000 depending on print size.

Also check out:
Velocity Art and Design
http://www.velocityartanddesign.com