Examining your competitor's traffic

How do you do it?

[qwer]

Until now I have used some methods into determining from where do my competitors recieve they traffic:
major search engine's SERPS;
major search engines PPC ads (including different countries);
link:mycompetitorssite.com on the major search engines
Etc.
Do you know, if there is some kind of tactic or software to do it better? As sometimes it's very tricky to find it out (if can do it at all).

[toktosunov]

maybe you know this already, but you can use Alexa.
alexa.com/data/details/traffic_details?q=&url=http://www.competitorsite.com

[qwer]

Thank you toktosunov,
yes, I am using Alexa several times a day, but it shows only the traffic statistics, not from where it does come.
It seems that this is impossible (as long as you don't own a spyware program ;)) ).

[siteseo]

Actually...there is a company that provides this information for a fee. I probably shouldn't post it openly as someone might think I work for the company (which I don't). If you're interested, PM me...

[rfung]

and how do they do it?

short of looking at the logs for the site in question, is there really a way?

[kittychuk]

Yes, Alexa is a good tools. You can download their tools bar.
And you can also download Google toolbar to read your competitor's traffic

Or you can check their no. of link
Google
link : www.#*$!x.com

Best Regard
Kitty

[TrustNo1]

I would imagine the only true way is looking at the logs and if you try that you deserve any legal problems you run into.