Why is Google indexing these URLs in wordpress blog

[skweb]

I use wordpress, but only in Google (and not Bing) I see URLs like this indexed:

www.example.com/blog/?p=rpqqtgbqwtu&paged=116

When I click on it, I can go the page that it is supposed to go and I cannot see anything abnormal. Obviously, I would be crazy to create such a link myself.

Can anyone plz explain what could be causing this and if I need to do anything about it?

[goodroi]

google will index any page that returns a 200 status code. if someone links to a non-existant page on your site and it returns a 200 status code, google will likely index it.