Solve Media (formerly AdCopy) is a privately held CAPTCHA service specializing in challenging users to prove they are human by having them type in the text of an advertisers brand name which they are calling type-in advertising. The user challenge is for skippable pre-roll advertising in which the user is given the option to type in an slogan of the current advertiser in order to stop the advertisement that would normally play before the content is allowed to start. Advertisers only pay if the user watches the first 30 seconds or more of advertising, foregoing the pre-roll skip challenge. On YouTube, where this is being tried, a range of 20 to 70% with an average 30% of users allow the advertisement to continue entirely even when given the option to skip it with a CAPTCHA challenge. - Source: Wikipedia
