If you've ever had to buy textbooks for school, you know how shockingly expensive they are. You also probably know about Chegg, the company that first made online textbook rentals easy and cheap.

At first glance, textbook rentals might not seem like big business, but lots of people need textbooks. Plus, some legal hurdles for Amazon -- the obvious competitor -- left an opening that Osman Rashid, founder of Chegg, was able to squeeze through. The result was a company that's been helping college kids everywhere save money on textbooks and lots of other things.

On this episode of Web Masters, Osman shares the story of how he and his cofounders built Chegg into one of the most valuable education service providers on the Web.

For a complete transcript of the episode, click here.