• Vator News, Wednesday, December 8, 2010 1:47 PM

Textbook rental site Chegg.com just announced the acquisition of online homework helper Cramster.com. Cramster presently claims about a million members, the majority of which Vator News assumes don't pay anything for the service. "The default for registering users, a free account on Cramster lets one look up solutions to odd-numbered questions in textbooks," the news source writes.

"Free users that want an answer to a specific question quickly must either pay a one-time fee of $4.99 for a response in less than eight hours or $1.99 for a response in less than 24 hours." If users choose to pay nothing, they'll be waiting up to 48 hours for an answer. Users can also upgrade to a "Cramster Complete" account for $12.50 per month, which includes all textbook solutions, and expert answers. They also get tons of Karma Points, which users normally earn through activities like answering other user questions or inviting friends to the site, and which can be used to purchase rewards like gift cards and laptops. In April, Cramster raised a $6 million Series B round of funding led by Primera Capital. In September, Chegg raised $75 million, and is estimated to be making $130 million in revenue yearly.

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