The document outlines the key players in the data sharing and network optimization ecosystem. It lists various firms such as Adchemy, Tumri, Omniture that provide banner/landing page optimization. It also lists data exchanges like BlueKai and Acxiom that compile data. Additionally, it mentions various ad networks, demand side platforms, analytics firms, and publisher platforms that are involved in advertising and optimizing the sharing of user data.

1. Data Sharing & Network Optimization Ecosystem Banner/ Landing MVT firms Adchemy Tumri Ad Ready Omniture** Teracent (acq Google) Data Exchanges or Compilers BlueKai Media Math Axciom EXelate Dotomi Audience Science CoreMetrics Ad Networks Advertisers Publishers Ad Exchanges Almond Net Analytics or Measurement Networks Quantcast Web Trends DART EBay Algorithm or Demand Side Platforms (DSP) DataXu Targus Red Aril AppNexus Invite Media X+1** Accenture Agencies Adnexus Pubmatic Rubicon Publisher Platforms Triggit Akamai Others Aggregate Knowledge Adobe Red Aril

2. Data Sharing & Network Optimization Ecosystem Banner/ Landing MVT firms Adchemy Tumri Ad Ready Omniture** Teracent (Google) Data Exchanges BlueKai Media Math Acxiom EXelate Dotomi Audience Science CoreMetrics Ad Networks Advertisers Publishers Ad Exchanges Almond Net Analytics firms Quantcast Web Trends DART EBay Algorithm or Demand Side Platforms (DSP) DataXu AppNexus Invite Media X+1** Accenture Agencies Pubmatic Rubicon project Publisher/ Ad Networks Triggit Akamai Others Aggregate Knowledge Adobe Red Aril Lucid Media AdMeld Experian EMS Data Compilers Publisher Network Optimization Platforms Halogen Jumpstart Ad Serving Atlas Open X Vivaki Nerve Center Contextualizers Peer 39 Context web Social Graphers Media6 Rapleaf Et al (300+) Turn Efficient Frontier Targus