What are the current top 20 most popular general Korean based search
engines? They do not all necessarily have to be hosted in Korea but
they should be popular with the local community.

Please provide your answers in English and with the following 
information: colloquial name (if appropriate otherwise the URL only is
fine), the URL, a brief description of the service, a personal note
about the service and any additional information (perhaps why it is
popular, for example).

although i don't necissarily know the reasons why each of these search
engines became popular, these are some of the most popular ones:
Google Korea- ://www.google.co.kr/
Asaico Korea- http://southkorea.asiaco.com/
Fireball Korea- http://www.fireball.co.kr/
Yahoo Korea- http://kr.yahoo.com/
Lycos Korea- http://www.lycos.co.kr/
Altavista Korea- http://www.altavista.co.kr/
Empas- http://www.empas.co.kr/
Han Mir- http://www.hanmir.com/
Start Korea- http://www.startkorea.co.kr/
Mochanni- http://www.mochanni.com/