Online CAPTCHA entry work on home based?

Online captcha entry work companies that employ people to spam sites and blogs, and bypass "CAPTCHAs", CAPTCHAs are the Word-verification tests while signing up for an email address, a social networking site, or commenting on a blog. These are designed to prevent automated spamming. However, where there is money, it appears that companies offer human powered services to bypass CAPTCHAs.