1. Opportunistic P2P Interactions in Mobile Pervasive Environments Olga Ratsimor Ph.D. Candidate Olga Ratsimor Ph.D. Candidate

2. Bartering of Digital Goods and Services in Pervasive Environments Context-based, continuous bartering with peers in pervasive environments Value in Use - is the value of the particular electronic good or service for the particular user. Value in Exchange - reflects the potential value of the service against any other service in value-for-value exchanges. Effects of collaborative strategies on the welfare of the network Effects of digital rights management restrictions on bartering collaborations Exploiting relationships between groups of devices

3. Intelligent Marketing in Mobile Peer-To-Peer Environments eNcentive MH3 MH1 MH2 Animated Slide

4. eNcentive: Targeting Locations

5. eNcentive + TrueBahn Trust based mobile shopping Mobile users are divided into two groups Kids and Adults Groups are interlined Kids have a circle of friends that can grow and shrink Adults have circle of other Adults that they trust. The circle can grow and shrink. Kids can shop for items that thy have been authorized to buy If there is a new item on the wish list then kids need to find an Adult from their trust network to give them authorization.