Selling eBooks and virtual goods are a popular way to make money online. Creating an eBooks often take a few hours, weeks, or months to make and then can be sold in unlimited quantity without requiring any inventory or infrastructure. A great online service for any aspiring author is Lulu. This service allows anyone to write a book or guide about any topic and publish it in electronic format. The author can also publish a hard copy, which can be used for book reviewers and other publishers. Other sites that help sell and distribute eBooks and other virtual goods include ClickBank. Createspace. E-Junkie. and Sellfy .