Like search folders, link folders are virtual folder. It doesn't contain records. A link folder just contain links pointing to the records. In the folder tree, there will be a link icon in the search folder column to indicate that it is a link folder. Unlike search folders, you can drag and drop records into a link folder. Biblioscape will automatically create a link between the link folder and the dropped records. Next time you click on the link folder, all those linked records will be retrieved. So it can be used as a tool to organize records for different purposes.
To create a link folder, go to "File | Folders | New Folder", check the box "Link Folder". Once a link folder is created, you cannot change it to a regular folder. To add records to a link folder, select records and drag drop it to the link folder. To remove records from a link folder, select records and click the right mouse button and select "Remove from Folder".
Link folder vs tagging with categories
They both can be used to organize records in a tree structure. For most people tagging with categories is the best option. The same category can be used to tag records across different modules. Only in cases when you need to use the same in tree strcuture for organizing, link folder will have the advantage. For example, if you need to create two items "Japan" and "Korea" at the top level, then add "History" and "Education" under both "Japan" and "Korea". This scheme will not work with tagging. Because tagging requres each entry must have a unique name. So you have to change "History" under "Japan" to "History Japan". If you want to keep the original scheme, you have to use link folder. Link folder doesn't require the use of unique names.