the right to sell and serve advertisements on 50% of the sponsorship tiles within the Co-Branded Application. As of the Effective Date of this Agreement, pages within Excite@Home's shopping service contain four sponsorship tiles arranged vertically on the right hand side of each page, though over time this may change at Excite@Home's sole option, but such changes shall not conflict with Application Provider's contractual obligations. Within this framework, Application Provider will have access to the first and third tiles from the top; Excite@Home will have access to the second and fourth tiles. Should additional tiles be added during the term of this Agreement, the first incremental tile shall be allocated to Application Provider, the following to Excite@Home, and so forth. Revenue generated by the parties from such activities shall not be shared but rather shall be retained by the respective party to whom the Sponsorship tile(s) are allocated. d) Excite@Home will not serve advertising on the Co-Branded Application for any "Application Provider Named Competitor," as specified in EXHIBIT E. Application Provider may designate no more than 10 companies as Named Competitors. Not more than once per quarter, Application Provider may update the list of Application Provider Named Competitors, but may not add to the list any company with which Excite@Home has a material existing relationship as of the Effective Date of this Agreement. Within three business days of receiving Application Provider's written update, Excite@Home will remove any advertising from Application Provider's listed competitors displayed on the Co-Branded Pages. e) Application Provider will not serve advertising on the Co-Branded Application for any "Excite@Home Named Competitor," as specified in EXHIBIT E. Excite@Home may designate no more than 10 companies as Named Competitors. Not more than once per quarter, Excite@Home may update the list of Excite@Home Named Competitors, but may not add to