I know not everyone wants to read reviews, but here's a couple of reviewers of e-books that might help with the "sorting."
http://redadept.wordpress.com/ Red Adept reviews mostly indie books, although she reviews anything she reads, so you'll find commercial reads on there as well. Warning: She's a kindle reader, so all of what she reads is available on Kindle--it may not be available for other readers.
And someone I found through this forum:
http://booksontheknob.blogspot.com/
She posts other news too, but lists free books and cheap books and this and that.
I haven't read this one, but I think it includes reviews as well as commentary on ebooks and the industry:
http://www.amazon.com/-/e/B002E0NBIW
Maria