Cameron Purdy, president of Tangosol, gave a presentation on distributed caching strategies. He discussed replicated, partitioned, and near caching topologies. Replicated caching provides extremely fast reads but limited scalability. Partitioned caching offers linear scalability as the cluster size increases but with a fixed read cost. Near caching combines local caching for fast access to hot data with a partitioned backend for full data scaling. Cache-through and cache-aside architectures were also covered.