Marketing my house and Background/Employment/Credit check

[Mohammed A.]

I am in the process of renting a single family house.

I marketed my property in Zillow Manager (i.e. Postlets.com). Seems like I can not do it in rentals.com. Seems like only investor with 5 houses can do that. Craiglist is another option.

Any other web site I can market? Can I post the add in redfin.com for rentals?  I couldn't figure out.  

Also, what is the best web site to do background, credit, & employment check for prospective tenant?

This is my first house I am marketing and renting by myself. Any other suggestion regarding marketing and background check? Thanks in advance.

Mohammed.