Various embodiments of methods, systems, and computer programs are disclosed for providing advertisements in a conference user interface. One embodiment is a method comprising: a conferencing system establishing a conference between a plurality of participants via a corresponding computing device connected to the conferencing system via a communication network; presenting a conference user interface to the computing devices, the conference user interface displaying each of the participants as a unique participant object in a virtual location; an online advertising platform selecting advertisement data from one or more advertisers; providing the selected advertisement data to the conferencing system; and displaying the advertisement data with an associated advertisement object in the virtual location during the conference.