The availability of Twitter, Facebook, YouTube, LinkedIn and MySpace compared

OK, I have to say sorry to the folks at Twitter. Although Twitter, in my opinion, seems to have slightly more ‘capacity’ issues lately, they of course are not the only ones that pay the price of success.

Now that I think about it: I would like to see this blog being over capacity now and then.

On a serious note: you probably know that there are thousands of companies worldwide that monitor the uptime and availability of (corporate) websites. They offer what is called “web performance management solutions”.

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Modelling user interactions in online social networks

I found an interesting presentation about modelling user interactions in online social networks. It was posted four days ago by a collaborator of the Seoul National University and presented at the Asian workshop of social web and interoperability in December.

The presentation looks at the definition of online friends and the interaction between (social) users.

The authors divide the social networks according to four criteria and axes: functional (like LinkedIn), user profile focused, entertaining and interest focused.

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