There are many hundreds of web directories online. They are about all topics you can imagine, but you hardly find one that is focused on neologism.
http://www.neologismus.net is interesting for both webmasters looking for free promotion and neologism fans looking for new words. At the moment http://www.neologismus.net is a small seed. Promotion is necessary to find German Webmasters whose website is about a new official used word to decribe that word for free promotion. So the directory grows, at the same time the webmaster of the directory is doin neologism research too.
