I also was told by someone who teaches online recently that we should bear in mind that GOOGLE warehouses all data in the US and it is thus available to Homeland Security. Also, Google mines the data and may even sell it to other data miners. This is probably not an issue, but just take it as information.
Does that make a difference to some areas of discussion?
Thank you for the information. This kind of third person sharing may be very important to those who like to safeguard their work. However, I am very open with that work that I currently do online and don't mind sharing as can be demonstrated by my involvement with Wikieducator. If I change my mind share, I will not use Google or any other online means of storage. I will keep my work under lock and key in my memory stick or whatever will be popular in the future.