Here they provide a link to an earlier post about the 5 best online search engines.
Lifehacker has a timely post called, "Top 10 Tools for Landing a Better Job." They describe it as, "From the first Google search to the last interview, you can boost your odds at landing a better job with the right preparation. Here are our ten best tools and tips for job-seekers and career climbers." it has good advice and great links. Good luck.