There are many ways to distribute your resume to prospective employers: mail, in printed form; fax; e-mail, as embedded text or as an attached document; or by creating online and posting to a resume database. You can also create a scannable resume.
If possible, find out which method your potential employer prefers. Sometimes job advertisements will indicate a preference, or give only one means of employer contact information. When replying to an ad, the fax, e-mail, and online methods will get your resume to employers most quickly.
Mail is the traditional method of delivery.
Faxing gets your resume to an employer quickly, but with slight loss of quality.
E-mailing resumes can be complicated due to different options.
Online resumes can be stored and searched in online job banks.
Scannable resumes are "plain text" versions of your regular resume.