Trying to sleuth weird drops in adsense. Checked the site diagnosis section in the adsense interface, and I'm seeing some "not found" errors on urls like:

http:/ / www. mysite. com/ articles/

Notice the extra spaces? Of course that url doesn't go anywhere useful.

I've tried to check if url's like that are actually on my sites somewhere, but so far no luck (I think). This is happening on sites on different webhosts, so not likely its a host problem.

Anyone know if this could be important, or whether it's a glitch at adsense end, and where else I could look to track this down.