Anyone used an online background check service?

[mmsmom]

I am looking for part-time childcare via Craigslist & referrals. I would like to do a background check on the person we decide to hire. Has anyone done this & if so would you recommend the company you used? I've found several companies on-line who do background checks but I don't know how to determine if they are legit.

[kmak]

You might want to check out Care.com. I haven't used it, but it's set up for everything your looking for. It's a website dedicated to connecting child care providers with people and does background checks and everything.