Craigslist is an online marketplace that allows users to post ads for jobs and items for sale. You can post a free advertisement without creating an account or logging into our site. A craigslist account allows you to post, edit and delete as well as repost. You can only post to one category or one city at a time, and not more than once per 48 hours. You may receive a blocked message if you post something that is similar to an active posting of yours. If the active post is older than 48 hours, you can remove it.