Forgive me if this is a stupid question, or should seem obvious. I have not been submitting cover letters to jobs that I have applied to from job boards. If I send my resume cold to a company, not advertising on a board, I will send a cover letter, as a means of introduction. The reason I have not been sending to job board posting, is that I feel I would need to customize for each application, which seems cumbersome, given the number of applications one might submit. Is this faulty logic on my part, and am I reducing my chances significantly by not including a cover letter for board posted jobs? Any help appreciated. Thanks in advance!