Are recruiting/headhunting services a good thing to sign up for?
It’s a good practice to tell everyone who will listen that you are looking for a job and also, what type of work interests you. So, if a headhunter/recruiter will listen, by all means, tell them. As for whether or not they can help you, that is a different story. Recruiters don’t really work for you… they work for the companies that paid them. So don’t be confused when they voice an eagerness to help and that’s the last you hear from them.