Like any crowdsourcing endeavor, Mjarrab will depend upon gaining a critical mass to be successful. But the fact that customers don't pay any fee for using the site, unless they want premium services, will make it a no-brainer to join. Riyal has built a product for his market, allowing customers to operate over SMS. "You don't need to understand the internet into order to use Mjarrab," Mjarrab's founder Khaled Riyal points out.
SOURCE LINK to full article:http://www.wamda.com/2012/09/mjarrab-launches-to-crowdsource-home-repairs-in-jordan