Welcome to MR, Bobioden, and congratulations on your new 600.
Below are a few links to explore. Have fun with your new toy.
MR has free ebooks that have been beautifully formatted by some very dedicated MR members.
ePub format and
Sony BBeB / lrf format. Your Sony uses both formats.
Free ebook sites..
feedbooks.com and
manybooks.net
Free and for purchase ebooks ..
smashwords.com and
baen.com Plus Baen has a
free library
You can explore using
Calibre to manage your library of DRM free books and Kovid, the creator, frequents the forums here. We even have a dedicated
Calibre forum.
Here are some book search engines for finding and comparing book prices..
AddAll,
eBookPrice.Info, and
Inkmesh .
Have fun in the forums and ask if you have any questions.