The document discusses how BugPub helps developers improve their products through crowdtesting. BugPub connects developers to a global community of testers and hackers who can find bugs quickly and affordably. Testers on BugPub found hundreds of valid bugs for an ecommerce website over multiple testing rounds, helping improve the site across many browsers, operating systems, countries, and languages for only $15 per bug - much less than the average $50 cost of in-house or outsourced testing.