Indeed is a comprehensive vertical meta-search engine for finding the various jobs appearing on different career site, company site, newspaper, classifieds and job boards at single location.
It has two input box, one is marked as what to describe the kind of job, title, skill, technology, company, employer etc. Another box marked as Where to specify the location.
The best of all these services are free for users.
One of the cool feature of Indeed is RSS feeds for customized jobs as per search. So it will continuously updated as and when preferred job gets crawled by Indeed.