What tools do your use to check popularity?

I am interested about what kind of tools people use. There are tons of them but I think some of them are just useless.

Which one is your favorite? And why do you use it?

... tools like what?
maybe it help if you give is some more information if you open a new thread, Website promotion is a big, general item.
If I say tome someone www.com is a cool site then is this promoting a website ;)

Edit: had your other thread in mind... but the same for this item tell us which tools you know and what popularity you want to check

I know different kind of tools for popularity like Alexa Traffic Rank, PageRank, Link Popularity.

But I would like to learn new tools.

I don't use any tool to check the popularity of my sites.

I think the usage statistics are enough to know some things about the behaviour of your visitors.

Does anybody else use different tools to check their popularity?

what do you mean with Link Popularity?

I mean how many sites link to you by link popularity.

You can check that easilly by searching link:www.yoursite.com in Google, Yahoo or Msn

I think now it becomes clear...

If you use Firefox you should use this extension:
http://www.quirk.biz/searchstatus

Pretty useful. But it would be much better if it was digits instead of percentage.

tell this the creator ;)

ok. I found out how to change to options to what I like.