Google PR4? PR5? What is that?

[Unregistered]

Can anyone one tell me what are Google PR4 & PR5?

Thanks!

 

[GT Web]

Google PR is what Google uses to determine how important a page is by calculating the number of incoming links. Google.com itself is PR10 (the highest possible) - and a site with PR4 or PR5 is pretty good. You can check PR with the Google toolbar or at: www.rankwhere.com

Simply, PR is a way to measure how many incoming links a page has

 

[Bionic]

Also links from high page rank sites give you better page rank,
the more page rank, the earlier in the search results you get shown.