The lack of sharing (or even giving) is the biggest barrier to my total plunge into ebooks. As Tim notes, the fact that ebooks are barely cheaper than paperbacks, regardless of zero printing costs and no opportunity for resale, doesn't help. I can't help but feel I'm getting a raw deal.

As it stands If i know a book is just for me and/or my wife, I'll pick it up on the Kindle, otherwise it's the dead tree route.

I really hope that one of the major ebook makers will at least add the ability to 'gift' books to others, but I think it's unlikely. They have little to gain and I'm sure publishers would put up a hell of a fight. The best we're likely to get is the nook's crippled lending function, or something similar that publishers have the option of disabling, and thus do so for every title (much the same way as most books now have the Kindle's text to speech feature disabled).