>>6
Not bad, but needs more virality. You ship each book with a mysterious vial of powder. No instructions or explanation included. Then you plant posts on all the scheme-based textboards like:
"I found this vial of powder in my book order from [SCHEME-BASED-BOOK-RETAILER] and I didn't know what it was so I injected it in my arm and OMG I AM SO FOCUSED NOW. Has anyone done this?"
After that, the hardest job is counting your money.