How to Cross-Post on Craigslistby Jocelyn Kerr
Go to Craigslist and click "Post to classifieds" in the upper left menu bar.
Follow the prompts to enter the type of ad, your email address and the text of your ad.
Click the login button in the upper right area of the screen if you have a Craigslist account. Enter your username and password, then follow the prompts to select the category and add your text. Click the "post" button to immediately upload your ad to the Craigslist site.
Check your email for the self-publish link if you don't have an account or chose not to log in. Follow the link to post your ad anonymously.
Log in to your account and click "Remove" to take down the original listing, or go to your self-publish email and click the link to remove the post. Craigslist ads stay on the servers for seven to 45 days, so you have to manually take the ad down if you want to post a similar one somewhere else.
Go back to the "Post to classifieds" link and follow the process to create a new ad, this time in another category or city. Limit the number of times you do this; every ad costs Craigslist bandwidth and storage fees.