can anyone help me with windows azure cloud computing platform.I have no clue on how to use it and what to develop using it.

install 2010 if you haven't already. It's got a number of cloud integration tools built in. Then google VS 2010 videos azure. That should do a good job of getting you started. You'll be able to ask more specific questions from there depending on what you have questions about and what you're interested in.

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My point is that i want to switch from physical and in-house servers to cloud computing because investing in this new technology has many advantages for business management in term of work effectiveness and management cost ; and many experts recommand me Windows Azure: Microsoft's Cloud Platform However; since I have read some stuff about clouding security in the cloud computing blog i become somewhat septic to invest mainly when i experienced a data storage crash with a cloud company that i do not want to name , so to what extent it is safe for data base storage and web hosting .and which are the best reliable companies affording quality services .