DIY Built-in Corner Bookshelves, via Remodelaholic.
Diy Bookcase: Guidelines That Will Help You In Making A Perfect Bookcase
I never thought about putting bookcases in a corner like this.
Wrap Around Shelves with Cabinet Doors and that window seat (needs a cushion!)
Built-in Corner Bookshelves
Corner Shelf Made of Plywood.
Build Your Own Corner Bookshelves - make with wider shelves for toy bucket storage.
Excellent way to fill an odd corner with lots of book storage. Floor to ceiling...
small corner shelving More
Tons of great storage and organization ideas from IKEA! (I could never come up with this on my own - wish they'd build an IKEA store near St. Louis, MO!)