Houston entrepreneurs seek a sharper search engine.They say their system of letting users rank sites is superior. http://www.irazoo.com/cachedpages/irazoo_housto... Four Houston entrepreneurs are launching a search engine today that they hope will challenge the likes of Google and Yahoo. Frustrated with the results they get from other search engines, Neal Verma, founder and CEO of www.iRazoo.com, and three friends with technology backgrounds have spent their evenings and weekends ”” and an undisclosed amount of money ”” over the last eight months developing iRazoo.