The Phuket Directory consists of more than 3000 listings, and is constantly updated with fresh information.
Near the southernmost point is Laem Promthep (Brahma's Cape), which is a popular sunset viewing point.
Here you are able to search or browse to find phone numbers, emails and addresses to Hotels and Companies around the island. That could come in handy during your stay.
Among other you may find the locations of many good restaurants, clubs and discotheques.