Which Famous PR site are without " rel="nofollow" "?

Just wanted to throw this question against you experts or someone who know that Which Famous PR site are without " rel="nofollow" "?

We all know wikipedia, delicious, etc having rel="nofollow".

But what about orkut, facebook etc.

They have good PR .

So did they count?

Thanks

 

all the famous sites are using nofollow to prevent the comment spam

 

With sites that seem to use or mirror - say - Wikipedia, like Askabout or whatever it's called, what happens to the content once it gets to that next site?

Does the rel="nofollow" carry-over to the partially famous sites which are using the famous sites?

 

Here's a few:

1. Digg (they do use rel=dc:source but that's doesn't take SEO credit away. See this thread)
2. RSS items on Facebook pages, box tab
3. LinkedIn lets you put three non-nofollow website links in your public profile. Be sure to set the website type to "Other" and put your keywords as anchor text

 

You can find out easily with Firefox without having to dive into the HTML source. Simply right click on the link in question, and select "Properties". If the link has a rel= value Firefox tells you.

 

great info. thanks!