Google Docs now has outlines! It’s a list of title and subtitles, clickable which brings you right to that place in the document. Link bookmarks in a PDF. Just go to tools->outline to see it. It’s a really great tool to have. Especially when you are using a document as a reference.
A custom developed rating system for restaurants, theaters, and hotels. Complete with a star rating system, user ability to add new items, search, custom fields, and admin control. Admin has the ability to approve, delete and edit ratings.