The organizers of the Ansari X-Prize have launched the equivalent of the X-Prize in a variety of technology areas, called the WTN X-Prizes.
The idea is to have a series of prizes for important technology challenges facing humanity in the 21st century, which will be judged by the World Technology Network. The website mentions that, "The concept of the WTN X PRIZES is to utilize the concepts, procedures, technologies and publicity developed X PRIZE Foundation"s Ansari X PRIZE competition for space and the global science and technology innovators identification process and community developed by the World Technology Network (WTN) to launch a series of technology prizes seeking to meet the greatest challenges facing humanity in the 21st century."