http://www.infoworld.com/d/cloud-computing/what-cloud-computing-really-means-031 Info World can solve a lot of the questions you have regarding Cloud Computing. It offers several links and PDF files that go in depth on the subject of Cloud Computing.
You can find PDF files for cloud computing all over the internet, and you may or may not need to pay depending on the site you get it from such as a torrent site.
Yes, there are several sites for cloud computing projects. Try, http://www.networkworld.com/news/2009/061009-cloud-computing-research-projects.html or http://thecloudtutorial.com/freecloudcomputingapplications.html.
The Cloud Tutorial is a great website which offers a lot of info on cloud computing. Access the site at www.thecloudtutorial.com.
Staples does have cloud computing solutions available for businesses, both small and large business. They do have detailed information about the cloud on their site, and also the business they have available.
I honestly do not know where to find a site on wiki cloud computing. However, if I were to guess a good spot to start would be a wiki page for the same name.
There are many sites that summarize cloud computing. Two of the best sites that I know of are Microsoft and Hewlett Packard. I hope that this helps you.
A good web site to find information on cloud computing is Microsoft or any other software programing site such as PCWorld web site. And the cloud computing is use by lot business people case it can run multiple program at one time such as video meeting where they can have meeting and not have anyone be there and have stream live with out delay or lag.
Some helpful informal cloud computing articles can be found anywhere on the internet. If you use this site, it will show you millions of results based on your question. http://lmgtfy.com/?q=+helpful+informal+cloud+computing+articles
www.blogs.com has a great compiled list of all the blogs in the world. Cloud computing can be found on this website, I have found the site very useful
I found three Cloud Computing magazines you might be interested in. They are; Alltop - Top Cloud Computing News, Cloud Computing Journal and TMC's Cloud Computing Magazine. I hope that you find these choices helpful.
I do not think that Linux is the only host for cloud computing. AT&T and HP are hosts for cloud computing also. You can get free cloud computing at intel.com.