Media type: E-Article Title: The Income of the 21st Century: Online Advertising as a Case Study for the Implications of Technology for Source-Based Taxation Contributor: Prussak, Assaf Y. Published: Elsevier BV, 2013 Published in: SSRN Electronic Journal (2013) Language: English DOI: 10.2139/ssrn.2206745 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: