I have signed up for that 3 month Scribd trial and after searching books, I am pretty sure I will stay with the program. If S&S comes on board also, that would be even more fantastic. The more big publisher stuff the better.
I do wish I could read the books on an e-ink device, but I am currently on a search for a 7 inch tablet as my 8.9 Fire HD is just a bit heavy over long reading stretches.
As far as libraries, at least the ones I have access too, the costs of those publishers and their restrictions (Harper Collins for example), have made them go a bit slower with adding to the library. And often they get one book and the wait lists then are very long and by the time one gets to the end, the license might have run out.
Just comparing HC titles, I found many on Scribd that my library does not have in the catalog.
I read a lot and most times I read a book once. If its something I read more than once, I'll buy it.
Now come to think of it, does S&S even have books in the overdrive library?
eta: I just checked and the books are already there. I am in romance reading heaven.
I see over 15,000 titles added by S&S, but I am not sure if all of those are in the subscription service.