Cookies is an unharmful text file that is stored on your computer's hard-drive. For example: if you login, it is saved into that file. According to the Swedish "law of electronic information", which took effect on the 25th of July 2003, everyone that is visiting a website that uses cookies shall be informed that cookies is used, what it is used for, and how to turn cookies off.
Further information can be read on
The Swedish Post and Telecom Agency.
Spellic.com uses cookies. They is used for keeping track of which users that are logged in or not. It is also used to remember settings and which exercise that is currently used (even though you are not logged in). Additionally, cookies are used by third parties to show ads and to collect statistics.