http://abcnews.go.com/sections/scitech/DailyNews/cybershake020325.html

Bookshare's servers contain more than 8,000 books that have been converted
into electronic files by members and volunteers using computer scanners and
software. To access these files, potential members must submit proof — a
note from their doctor or ophthalmologist — of their visual impairment and
pay an annual subscription fee of $50

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