There's web automation software that can do this. There's a company/product called "automation anywhere". You might check into it.
I am currently posting about 850 ads a day 6 days a week on Craigslist. Hide My IP and IP Rental are certain death. They have a limited number of IP addresses and every overseas poster in the world uses those services. You will not be successful if you use them. We have software that posts our ads, the software is the best available in the world and cost $1000 to purchase. We have multiple DSL accounts, 1 each for 4 computers. The software changed the IP between posts and will not reuse an IP for 48 hours. These are just a few of things that are needed to post sucessfully on Craigslist and what you need changes everyday but the first and most important thing to change in your list is your IP source. Without that you are wasting your time. If you are not in the U.S. the only way to get posts up is with exclusvie proxies that cost $2 per month per proxy.
PLEASE I WANT SOMEONE THAT CAN HELP LIVE A JOB POSTING ON CRAIGSLIST.PM ME ON susanart_world01 at yahoo