At the user homepage you can see a list
of all your topic, change topic properties such as sharing mode and topic name,
and search for topics by keyword.
Each topic is defined as either Private, Shared and Public. A private topic can only be viewd by you. A shared topic
can be viewed by you and people on your buddy list, and public topics
can be viewed by everyone. To change sharing mode, click the "edit" link
next to the topic name on your topics list.