If you are looking for a job, are likely aware of all of the online resources available to you. Not only can you visit the websites of individual companies, you can also use other popular web resources like Monster and Yahoo Job Search. Social networks are also helpful, especially when you have experience in a particular field. Just remember that prospective employers also have access to social networks. They can also access any online postings you have made.
Anyone who read about the candidate who was being seriously considered for a position when his name was suddenly dropped completely from consideration knows what happened. The personnel director was online and found a diatribe in which the candidate slandered his previous employer. And it was posted right on the applicant’s Facebook page. Keep in mind that the internet is a wonderful source of information, but that this does work both ways.