Hawaiiandex.com - History of Hawaii

Hawai'i - brief, but covers governors, kings, annexation and more, starting around 1795.
Hawaiian history - history of Hawaii from 300AD to 1900AD - a bit brief, focusing mostly on Cook as well as later rulers, but still....
Hawaiian History - info on a variety of topics, including palaces, this link takes you to a page on rulers.
Hawaii History - not sourced, and a bit spotty, but an interesting read.
Hawaii State Government Home Page : About the State of Hawaii : Brief History of Hawaii - as it says, focusing on the post-Cook period.
Hawaii Then and Now - good overview with an indigenous perspective.
History Of Hawaii - Natural Guide To Hawaii - brief info on a variety of topics.