You recently answered a question regarding collating information, to make a directory type eBook(A collection of links etc. on a given subject).
Could you expand on this idea with some ideas of what could be included to make a directory real value for money, and not just a series of links that could be found free via a search engine.
Anyone can compile a series of links and offer it as a directory. So there is not much value in it except in saving the reader time. However, if you were an expert on the subject, and were able to provide guidance and increase the information value of your links, then this has more usefulness to the reader.
You can apply the same theory to the job of editor of a publication. Because of the way that person uses their skill set and experience, the publication increases its information value.
A poorly-produced directory will just be a simple list. A directory of value will have descriptions of links, authors notes, relevance and detail.
An example would be the difference between an encyclopaedia where there are detailed references, and a dictionary which only outlines the word description.