From Internet to Paperback
Short, concise description of the idea
People pay money to have their journal transcribed into a real journal.
Full description of the idea
If people no-longer use LiveJournal, and wish to cancel (god-forbid) they can be able to get their journal in hard form, to read whenever they like, or to pass down to their kids saying "I had this trouble at your age". Of course it would cost some money, but there would be a fee for the service, and who hasn't seen the commertials for in=demand publishing? You could choose the font of the text, (Lucita Handwriting to make it look like it was written,) and cover picture. And mail it out to them.
An ordered list of benefits
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation