Again, there are generally referrals for tax and insurance issues on the site, as well as tools such as sample work agreements, in template format, provided to the family. Families order the background investigation, and pay for it directly. Families craft the final work agreement. They are responsible for making any transportation arrangements, if applicable. Compare that to the telephone ringing constantly from a newspaper ad, usually in the middle of dinner, bath time, and when you want to relax.
Newspaper advertisement is the most common.
Most daily and weekly papers have a category for Nanny, Childcare, or Domestic Help wanted advertisements. The newspaper staff will help you with the wording. Remember to include important requirements such as experience, non-smoking, whether driving is required, days and hours, references required, and when to call. Ask for references from likely candidates, and get the candidates full name and telephone number. Check references, if possible, before arranging the face to face interview.