In the past five years we have seen online advertising grow into the largest individual advertising sector. In this webinar, Analyst Callum Sillars will explore how advertising in the digital world has evolved into the market that we see today, analysing the major players and taking a closer look at the potential barriers to growth that remain when looking towards the future of online advertising. Key questions answered will include: • How has the online advertising market changed over the last five years? • Who are the major online players globally? • What are the barriers to future growth of online advertising? The presentation will last approximately 20 minutes, and there will be a short Q&A at the end.