Rather than simply providing an interface to ping a GGN no. GLOBALG.A.P. has developed the Bookmarking with broader functionalities. The general idea is to manage procuder in bookmark lists and then query the list as such. If you query a bookmark list, you get all bookmarks where the bookmarked data changed since your latest query. The changed elements will be marked. So, this interface is built to continuously update a local database of bookmarks with the bookmarking lists set in the GLOBALG.A.P. Database. If you want to filter or search in your bookmarks you can do this either in your local database or in the online user interface of the GLOBALG.A.P. Database.