There are good and bad sides to it
First of all don’t just send a resume. Go look online for a website. A lot of companies now have online applications. These are basically forms the companies make and they are designed to maximize keywords. You know things H/R people look for when they hire.
If they have that, go online and fill out an applicaiton and submit a resume that way. They WILL keep it on file and they WILL call you. I’ve been called even a year later for a job that opened up that way.
Now the downside. You’re usually last on the list. If you submit a resume to a company, often they H/R people fail to look. Then they’ll post a job somewhere, say a job board. Then if you apply for that job, you know have TWO resumes with that company, and that CAN irritate H/R people.
I’ve worked in H/R and I’ve worked WITH H/R managers and they aren’t the most computer literate people around. When I did Six Sigma (efficency) work, it was very difficult to say to H/R “Don’t post positions, till you rescan your resumes.”
With unemployment being so high H/R people are getting VERY lazy and VERY demanding. And to be fair, they are holding all the cards now.
Unsolicited resumes work best when you’re willing to take “crap” jobs. For instance, working the 11pm to 7am shift. No one wants that, so if you submit a resume saying that is what you’re looking for, even if they have no position available now, they WILL remember you because, that’s a crap shift.
Finally a lot of resume’s are classed by phone number as well as name. That it they are stored in a database with the phone number as a key
I would go to Google Voice and apply for an account and request an invite. Use this number to for your resume. So if you’ve already submitted it, you can try again with a different phone number.
The job market is so messed up, even volunteer opportunities are gone. I’ve NEVER seen that before. I’ve tried to volunteer at every place I can think of within walking distance of my house. Salvation Army, 5 hospitals, public library, two food banks etc, and no one even has openings for free work. I figured it’d be something to write on a resume.
So you may want to keep it up, you may get lucky, but it probably won’t work. Just don’t pin your hopes on it