Because ads sort by expiration date and not post date, you will find new ads throughout the page. For the first 24 hours they will be marked with a red “New” tag.
Here are some other tags that may appear next to an ad:
When an ad is updated the “Updated” tag will appear for 24 hours. Look for these. The price may have been lowered.
When an ad will expire in less than two days, a gray “Expiring” tag will appear.
Sometimes we find an ad that is funny, interesting or just cool. A “Cool Ad” tag will appear.