ZooKeeper and HBase
A small intro on ZooKeeper, how HBase currently uses ZooKeeper, what problems the user community might face with ZooKeeper in HBase and recommendations. Some future use cases of ZooKeeper in HBase.
An introduction to ZooKeeper
A brief overview of ZooKeeper and BookKeeper
ZooKeeper Futures (3.3.0)
This talk was geared towards developers that may use ZooKeeper. It's long, 1 hour, and has some examples with code.
ZooKeeper video from Hadoop summit 2008
This talk has a high level overview of ZooKeeper and the current status of ZooKeeper.
This is a shorter version of the Yahoo Tech Talk. Code examples had to be skipped.
another internals talk that talks about how the code is structured: zookeeper-protocol.pdf
This talk has more of an academic flavor, and it was given first at UPC.
Building a Global Highly Available Service Discovery Infrastructure with ZooKeeper
The presentation was given on a local gathering of Ulyanovsk software engineers called ULCAMP::DEV (http://ulcamp.ru/dev) on April 5th, 2013.
ZooKeeper. Taming your server farm