I am newly join in this site.This site is very useful to others.A job search engine is a website that facilitates job hunting. A more recent trend in job search engines is the emergence of vertical search or metasearch engines, which allows job-seekers to search across multiple websites. Some of these new search engines primarily index traditional job boards. These sites aim to provide a “one-stop shop” for job-seekers who don’t need to search the underlying job boards. Tensions have recently developed between the job boards and several scraper sites, with Craigslist recently banning scrapers from its job classifieds and Monster.com specifically banning scrapers through its recent adoption of a robots exclusion standard on all its pages while others have embraced them.