These solutions don’t fit into any category, yet their worth and ability to assist authors are definitely worthy of a mention.
Evernote: This great little program can be on your desktop, browser and even your mobile device.
Dropbox: The best back up you’ll ever have.
AdobeReaderXI: A PDF mark-up tool for proofreading a print PDF before it’s printed.
BitLit: Imagine all those readers who bought your print books.
Slicebooks: It slices them into chapters and sections. Remix your catalogue into completely new titles with new covers.