Types of job oriented search engines

question----how many types of job related search engines?
ans----• Bixee.com (India)
• CareerBuilder.com (USA)
• Craigslist (by city)
• Dice.com (USA)
• Eluta.ca (Canada)
• Hotjobs.com (USA)
• Incruit (Korea)
• Indeed.com (USA)
• LinkUp.com (USA)
• Monster.com (USA), (India)
• Naukri.com (India)
• Yahoo! HotJobs (Countrywise subdomains, International)