vOpenData is a cool project that gives insight in statistics like: what is the average size of a VMDK, what is the average physical memory per host and what guest operating system is used most. The project started around 2 weeks ago and already data over 65000 vms has been uploaded.
Taken from vopendata.org
vOpenData is an open community project that grew from the question “What is the average VMDK size for deployed virtual machines?” We wanted to create an open community database that is purely driven by users submitting their virtual infrastructure configurations. Leveraging the powerful virtualization community and applying simple analytics we are able to provide various trending statistics and data for virtualized environments. This is 100% community driven and the results will be available for everyone to view and hopefully you will contribute to the overall dataset!
To contribute, you simply have to register into the website and add the infrastructures you have access to. Consultants have the possibility to upload data about their several customers, so they can increase even further the database.
Results are freely visible, even without registration, at this web page, and you can see an example down here.
Below an impression of the data! Looks very cool!