The Internet is the most powerful employment tool on earth. Hands down.With the Web, you can access millions of job openings on thousands of sites. With email, you can quickly contact employers and ask for interviews.Yet, if used incorrectly, the Internet can actually prevent you from being as productive as possible in your search for work.How? Why?Here are four mistakes that commonly befall job seekers using the Internet. Avoid them, and get hired faster.1) Don't Email Your Resume WrongI've wri.