Online cloud storage services compared

http://www.pocket-lint.com/news/40364/icloud-google-music-dropbox-skydrive-amazon-cloud-player  compares some on-line cloud file storage options, as do http://m.ibtimes.com/apple-icloud-top-rivals-162797.html http://www.wired.com/gadgetlab/2011/06/cloud-services-compared/all/1 and http://dottech.org/android/best-free-apps/22730/android-best-free-cloud-storage-app/