PageSector is a perfect choice for a strategy guide for a game, some story you want to read, or any text file you have and would like to save your spot so you could come back to that point later.
With PageSector you can open text files and save at any point in the text you wish by adding section names (book marks) You can label the section names, what ever you want. PageSector keeps track of the section names and where they correspond in the text, however its not based on there label. Also PageSector keeps track of the files you have opened so you won't have to track them down again. You can even do a search in the opened text file.
This is a great app for gamers. Authors of strategy guides or any text file my want to distribute the Section file(s) with their text file(s), so users can see a list of topics, chapters, sections, etc. and go to them with ease.