I think the collaboration is useful and works well. The original article is here. This is interesting for me.Google Online Security Blog: Street View and reCAPTCHA technology just got smarterThe normal CAPTCHA is a web technology which you…

I'll show you some articles which I recently read and felt something against.Tarsnap - Why is 1 GB 10^9 bytes instead of 2^30?I've not known this before. This is not essential, but something new for me was the unit of 'Gm'. We rarely say t…