if you look into you wallet you will see there (on the 2nd tab) a lot of other coins do exist, besides the HIVE token. to sell/buy the, you should use the site:
http://hive-engine.com. have a look if you are intrested... but they are not so important as Hive.
ps. almost forgot to mention: CCC (creativecoin tokens), you may earn CCC by adding the #crativecoin tag to your posts. cheers!