Random Reaper extracts links from dmoz.org smartly, and descards all junk links. Links are then stored in a MySQL database, so if you run a webserver it will be faster than dynamically fetching links and modifying them. The difference between Random Reaper(RR) and its competitors is that RR uses a new technique in getting links. You don't need to enter a search phrase, all you do is just select a category, subcategory and get a random links from there. This type of Open Directory is ideal for people who like to explore more of a particular topic.