Tereza Semerádová is a researcher in the Department of Informatics, Technical University of Liberec (Czech Republic). In addition to academic activities, she also participates in numerous marketing projects where she operates as a consultant on Facebook ads, Google AdWords, and website analytics. She is a specialist on dynamic ads and remarketing, and her primary research interests include online marketing strategies, user experience design, and advertising efficiency.

Petr Weinlich is a researcher in the Department of Informatics, Technical University of Liberec (Czech Republic). He has both academic and professional experience, and has participated in many marketing projects both as an art director and a designer. He specializes in multimedia, web design, and creative marketing content.

1. The Broad and Narrow Definition of E-Commerce.- 2. Evaluative Framework for Digital Competitiveness.- 3. Website-Centric Shoping Experience.- 4. Socially Responsible Online Marketing- 5. Algorithms - the New Leaders of the Advertising Market.- 6. The Credibility of Online Recommendations.- 7. The Relationship Between Product Placement and Shopping Intentions on Instagram.- 8. Product Endorssment by Opinion Leaders - the Case of Youtube Community.