I've found that a rather “novel approach” as one of many (often mundane) ways in managing over 700 links of bookmarks divided into 50 categories. One of several means applied in managing bookmarks is to determine the average number of links per category (by dividing 734 (links) by 50 (categories) to equal and average of (14.68 to be exact)), or rounded- off to 14, and 15 as the average number of bookmarks per category. The specific categories that have 14, and 15 bookmarks are analyzed, and even (more often than not) contain overlooked links, which are found to tie into current interests. I find that a few of these links are best moved into other categories, or deleted entirely. With the average number of links at 14, and 15, it can also be determined that each category is best maintained at under 30 links (15 links multiplied twice to reach the number 30 links criteria). Again, a few links are best moved into other categories, or deleted entirely. Periodically, whole new categories are added (as subcategories) e.g., to divide say 40 links into two categories of 16 to 24 links each. In the case of categories containing fewer than eight links (15 links divided in half to reach 7.5 or (the eight links) criteria), I usually add more links, sometimes move links to other categories, of delete links; as categories containing too few links may no longer be of interest. On occasion, whole categories are deleted. Bookmark lists only display the quantity of bookmarks (links and categories). Are there bookmark utilities that record the frequencies of how often links and categories are clicked-on? To do averaging based-on time frequencies can also yield potentially valuable data. As said at the beginning of this post, averaging (regardless of what types of bookmark statistics (quantity of links, or time frequencies) are applied) is only one of many criteria for managing bookmarks. At times, averaging may serve as a guide to those bookmarks that may have gotten “lost in the shuffle.” Mathematics guides our intuition. "Arno Allan Penzias" 1978 Nobel Prize in Physics.