When describing my motivations for adding a Dive Site database to Maldives Complete, I noted the lack of interactive guides. Most diving information is traditional hard-copy book form or magazine websites that provide articles and overviews, but not a structured, interactive resource.
The exception to this standard approach is the Werner Lau dive centre website. They have cleverly integrated a mapping of the dive sites near their centres with Google Maps to provide an interactive layout of all of the dives sites local to their 4 Maldives dive centres. You can scan the area for websites who have ToolTip annotations and then simply click on their names to take you to a full profile of the dive site complete with dive chart.