As well as being used for in-store signage, E Ink's technology powers Sony's e-book reader, and in April, Seiko, a watchmaker, unveiled a digital watch built around an E Ink display.

ECONOMIST: REPORTS

As such, dedicated monochrome E-Ink devices like Kindle and the Sony Reader will be forced even deeper into the niche they now serve as the year plays out.

ENGADGET: The e-Reader story of CES 2010

Imagine a micro e-reader app which uses the E Ink display instead of the main panel to conserve battery.

ENGADGET: Popslate launches iPhone 5 case with four-inch E Ink screen (video)

Evernote's Web Clipper allows saving content with a click, and pages saved with Evernote Clearly are optimized for Reader's crisp E-Ink display.

ENGADGET: Sony Reader gets a new design, Evernote integration and a free Harry Potter book for $129

Amazon's new e-reader uses the same innovative e-Ink screen and wireless connection that made the first Kindle a modest hit in the world of digital bibliophiles.

FORBES: Magazine Article

On Wednesday, Sony announced a new version of its Reader line-up of E-ink devices including its standard six-inch Touch Edition, the diminutive five-inch Pocket Edition, and larger seven-inch Daily Edition, each thinner, lighter, and featuring a more attractive display than the last version of those gadgets.

FORBES: Sony's Latest Reader Release Cedes Price War To Amazon

Bookeen's Cybook Opus is now definitely the best eBook Reader of its kind: thanks to the very latest E-Ink electronic ink technology, its screen offers the most comfortable reading experience, comparable to paper.

ENGADGET: Bookeen's upgraded, colorful Cybook Opus to debut on May 7