Some numbers that you might want to keep in mind about why employers use social networks to look up potential hires are:
45% want to learn more about his/her qualifications
65% do it to see if the job seeker presents him/herself professionally
51% want to know if the candidate is a good fit for the company culture
They may also be looking to see if the candidate is well rounded or to find reasons to not hire you. (CareerBuilder.com)
If you’re searching, you should spend some time cleaning up your profiles. Photos of you partying, dancing in a sexy Halloween costume, smoking etc. should be untagged, possibly even removed from your profile. Have you been complaining about your current job or boss online? Consider deleting or at the very least hiding those posts from view.
You need to maintain a balance of a presence online and not too much of a presence. If you’re
no where to be found, your potential employers may think you’re hiding. They may also question if you have the necessary skills for the job. Nearly all jobs these days require a basic level of competency with a computer and the internet. Your strategic presence online will demonstrate that.
Finally, when you do get that job offer, don’t post about it until it’s official and you have permission to share. Some bosses have fired employees for sharing this kind of news before they had approval. It could also limit other potential offers you could receive. Why bother offering someone a position if they’re already so excited about a job somewhere else? Don’t let these things happen to you after all your hard work to make it happen!