My research

My research

After learned Week 5, I am really interested in web searching. So I did search something using websites that learned from week 5 course note.

I check my Renren every day, which is a social website, just like Facebook. First of all, the domain name of it is www.renren.com, which is normal name. Actually it used to be www.xiaonei.com, which means in the campus. So we usually use it keeping contact with each other. Second of all, the extension is .com which means company, it still looks normal until now. Then if I click into my space it turns http://www.renren.com/233657945/profile which is operated by myself, so it is still safe for me. 

Also I typed it in easywhois to check its author and I got:

And it is quite clear that I can trust. And I checked the history of it:

But this part I do not really understand. It only gives me the some circles which means snapshots, that is what I got lost. Does that means the operator do something to it or the time that I hit it? 

And one more question, is there any relationship between our homework and web 2.0? I read the notice and watched the video, but I still do not get it...