I added a links directory to my messageboard for the purpose of promoting link exchanges between my website and other websites (and to reduce message board spam). I was wondering what categories I should have in my links directory? Should I only have related categories to my website's theme or should I add as many categories as I can? Would the more link exchanges I can get, regardless of whether it's from a related topic website be best, or will this hurt me? Please keep in mind I am not going to go out and hunt for various unrelated and related websites to do reciprocating links with. A big part of the purpose of this directory is to get spammers who would spam various products on my messageboard to advertise their links in the directory instead in exchange for them adding a link to my site on their website. I also use the links directory for websites where I try to get a link to my website placed on their website, and they ask for one in return.