Barnes & Noble Nook ( Wi-Fi)
The Nook Wi-Fi doesn't quite measure up to the Kindle in terms of design and overall performance, but it's a worthy alternative if you're looking for a more open e-reader that supports the EPUB format.
Amazon Kindle ( global wireless, 2009 version)
While the new internationalized Kindle looks exactly like the earlier U.S.-only model, this e-reader, which uses AT&T's data network for wireless access, represents an incremental improvement to the Kindle line--just as serious competition is ramping up in the e-book market.
Sony Reader Touch Edition PRS-600RC ( red)
While it's an improvement to the company's previous touch-screen model, Sony's Reader Touch Edition PRS-600 is saddled with a screen that's short on contrast and prone to glare--and it lacks the wireless convenience of Amazon's identically priced Kindle.
Sony Reader Pocket Edition PRS-300 ( silver)
While Sony Reader Pocket Edition PRS-300 has a basic feature set, its $200 price tag, compact size, and Epub file compatibility make it an appealing e-book reader.
Sony Reader Digital Book PRS-700BC
The PRS-700 takes one step forward for Sony digital readers--and a couple leaps back.
Amazon Kindle ( first generation)
With its free built-in wireless capabilities and PC-free operation, Amazon's Kindle holds a distinct advantage over Sony's Reader and is a promising evolution of the electronic book--but Amazon needs to bring down the pricing for both the device and the content to attract a wider audience.
Sony Reader Digital Book PRS-505 ( silver)
While the PRS-505 Reader Digital Book is not without flaws, Sony's improvements make this model easier to recommend.
Sony PRS-500 Portable Reader System
Though the Sony PRS-500 Portable Reader System is an impressive platform for reading e-books and other documents, the price and availability of compatible "books" makes it a tougher sell.
Franklin eBookman EBM-911
Though lacking in features, the EBM-911 is great as a basic handheld with e-book- and audiobook-reading abilities.
Pricing not available
RCA REB1100 eBook
Though portable, RCA's REB1100 eBook offers limited book selection and document format support.
Pricing not available