1. Pete Cashmore Blog: Mashable Topic: Social Media News, Technology Monthly income: $560,000 – $600,000 At 25, Pete Cashmore is one of the youngest top bloggers and, at the same time one of the youngest Internet entrepreneurs. His performance is nothing less than astonishing – at 19, he founded Mashable, the hugely successful blog dedicated to social media and tech. Mashable is a top 10 Technorati blog and a go-to destination for anything related to the hottest topic in tech today – social media. Cashmore earns his income from an assortment of display ads and pay-per-click links, which together with […]