Resume submission done manually, one at a time, is extremely labor intensive and inefficient.
There are now many resume submission services that electronically submit your
resume to hundreds of active recruiters. Various services actually blast your resume out to thousands of employers at once and also post your resume in the appropriate job boards so it will be seen by active recruiters. It is nearly impossible to personally get this kind of exposure without using a resume distribution service. It is definitely worth the small investment and will inevitably get you much more exposure to your ideal job opportunities.