Books on the Knob, Pixel of Ink, and iReader Review are three blogs that feature free & bargain ebooks daily. If you want to start simple there’s OpenCulture’s 375 Free eBooks list but if you don’t mind doing some footwork then there’s this very comprehensive 614 Places for Free eBooks Online post (with divisions of content by genre) on Gizmo’s Freeware.

more sites featuring free & cheap ebooks:

*ManyBooks

*Feedbooks (free public domain & original books)

*Daily Cheap Reads (UK edition)

*AddAll ebooks

*eReaderIQ

*Bargain eBook Hunter

*Free Kindle Books and Tips

*Kindle Nation Daily

*Bargain eBooks

*Book Depository

*for romance readers, both Dear Author and Smart Bitches, Trashy Books feature regular deal posts

*and of course there’s always the Baen Free Library

Not to mention the granddaddy of them all, easy to ignore because it’s been around so long: Gutenberg

Also: Openlibrary.org

For those with iDevices, there’s always the Free Books app

via free & cheap ebooks | MetaFilter.