1. Navigate to Google's paid classifieds (see Reference). If you happen to be low on funds or simply wish to post for free, navigate to Google's free classifieds area (also in References).
2. Select an advertiser from among the many listed. Some may be more appropriate for you than others. The list includes low-end classifieds services (such as Pennysaver) to websites geared specifically toward musicians, international travelers, expatriates, businesspeople and others.
3. Click on 'Post a job,' typically located in the service's main menu.
4. Fill out the form presented to you. Most of the job forms are similar, so it may be worth your while at this point to copy the text of the job posting so that you can use it later (see step 5).
5. Repeat steps 1 through 4 to post the job advertisement on multiple job sites in Google's directory. If you saved your text, this can be as easy as pasting it into a different service's 'Post a Job' form.