No, Google is not in itself a social network, but all job seekers should begin here. To "google itself" is not vain, but on the contrary very wise. Remember the things that pop up when you search on your name is the same a prospective employer will get up.
A professional recruiter should not emphasize things that are not directly relevant to the job you are seeking, but be prepared that things that are about you online can be a theme during an interview.
If you have been unfortunate and others have laid out texts, videos or pictures of you that you're not comfortable with, there are ways to remove this. http://www.slettmeg.no
are resources where you can find information and help in dealing with unwanted information about yourself online.