Forum Sidebar by @Fosters allows you to customize the sidebar blocks on the forum and topic pages per forum. This means that you can show one block in Forum A and another block in Forum B. You can strategize your board's different sidebars by pinpointing relevant content, optimizing your monetization schemes, and showing related information when and where it makes sense.
Separate out your discussion boards and finetune your sidebar blocks per forum!
!! REQUIREMENT !!
This file requires Pages and Forum application.
Before adding blocks to the forum, blocks must be previously created in Pages app.
Install the application in ACP > System > Applications
Go to ACP > Community > Forums > Edit the forum > Click on "Blocks" tab.
Add / reorder the blocks you want in Forum sidebar or Topic sidebar.