Getting Real about NoSQL and the SQL-Isn't-Scalable Lie by Dennis Forbes. Buoyed by Canada's Olympic success, Dennis is going for the gold in that least real of sports, the NoSQL vs SQL pursuit.
Design Patterns for Distributed Non-Relational Databases by Todd Lipcon. Great coverage of consistent hashing, consitency models, data models, storage layouts, log-structured merge trees, and gossip protocols.
Kaazing Pushes Web Sockets to Make Browsers Real Time. Bi-directional communication comes to the web, but shouldn't sockets be able to accept connections too?
4 Months with Cassandra, a love story. Cloudkick likes its Linear scalability, Massive write performance, Low operational costs. We'll likely keep moving more data into Cassandra as we need to, but for some data the ability to write arbitrary SQL queries is still very useful.
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Source: High Scalability