Do you know anywhere i can make my wordpress blog so i can put a different content for its side bar. I guess you know that the thing at my side bar will be visible in all of my blogs. Do you know what i can do to make me chose the thing to put at various post in its side bar? Themes etc, what can help? I need to fix this.
Not sure I understand the question, but you can use a "Widget". Just go to "Appearance" then "Widgets". I usually use a Text widget with HTML and the Recent Posts widget.