I'm a member of a forum on which members put considerable amounts of information for others to use, but the problem is finding the information. Using the search function is useful but doesn't always work. Would it be possible to create a system that allows members of the forum to create an index, just like the sort of index you get at the back of a book, not to replace the search function but to complement it All it would need would be for an 'index' button to be put on threads and posts, next to the 'like', 'Quote' and 'Reply' buttons. If a forum user wanted to add a post or thread to the index they would simply click the button, fill in a box for heading and maybe subheading, then a short description and then click another button to finish. The entry would then be automatically added to an alphabetical index and over time the members could create something like a book index that could be browsed. The index buttons on the posts could change colour when they were indexed, but that's the sort of detail that XenForo could sort out if this was thought worthwhile. Instead of bookmarking pages (and then losing the bookmarks!) members would create an index entry that would be just as easy to access and take no more effort to create than a bookmark.