So, I emailed Pandora after their Twitter account suggested me to do so regarding my query about recent WSJ series: What They Know – Mobile

I think I am pretty satisfied with their response and clarity.

Since we are still in the early stage of mobile computing, no one knows what type of regulation and guidelines are to be followed from the context of both users, app developers and Ad Companies. I’m optimistic that  all these debates regarding user privacy and the scope of data tracking in the web and smart-phone world will produce some clarity in the future.

MongoNormolica is a MongoDB Master-Slave Replication Library for PHP.

Basically, it manages read slaves and write master connections.

You can select / use slave in number of ways:

• Radnom Slave Selector
• Round Robin or in sequential way
• Most Recently Used Slave

The code is hosted on Github

You can look at the tests folder for implementation for now as, I still need to add more examples.