Cloud computing alternatives

Google had a bad week in cloud computing, with serious downtime in Gmail, Blogger and Spreadsheet. Back in July it was Amazon that was embarrassed with their S3 outage. If you measure on total downtime, cloud computing still looks good compared to traditional hosting or in-house data centers. But that glosses over the psychological and market confidence issues, when a problem hits everybody at the same time. In contrast, when was the last time you heard about a massive Skype outage? Maybe it is time to look more seriously at P2P?