In fact, from a June 2010 web article, Making Money Online, Part 2: Microworking on the site The Quill, a number of other crowdsourcing sites ShortTask, microWorkers, and DeskLancer suffer to a more observable degree from spam crowdsourcing.

FORBES: Spam Hurts Crowdsourcing But Can't Kill It

The stock market was going gangbusters, everyone except me seemed to be making money hand over fist, and with the help of the internet and online trading, anyone could get in on the action.

FORBES: Two Questions No One Ever Asks Their Financial Advisor But Needs To

Advertising has been a missing ingredient because Tumblr, like many online services in their early stages, focused on building a loyal audience before turning its attention to making money.

WSJ: Tumblr CEO's mom gushes over billion-dollar baby