Rumors and hearsay are important for passing around information that you want to be common knowledge.
They could be small things...
"Widow Maxine seems to be taking a lot of male visitors these days."
"The innkeeper of the White Door has come down with a very nasty flu, and quality of service is slumping a little without him to enforce it."
They could be huge things...
"The wizard tower has been utterly destroyed! Eyewitnesses proclaim that the culprit was a strange spirit woman who appeared with a bard. The archmage was murdered during the attack."
They could be updates to previous things (do this in a reply to your original post)...
"After months of work, the wizard tower has been rebuilt, but no one is any closer to finding the spirit woman."
Include all the detail that you think is necessary, but try not to give too much away. Write it in the form of, well, rumors and hearsay--things that would be common knowledge for either a group of people or the whole town, such as damage to a building and rumors of a plot.
Please don't post in another person's thread. Leave that to them. And DO NOT ROLEPLAY. This definitely isn't the place for that!