Yikes! Just got this error as I was trying to access Google Scholar through Wayne State's authentication. Not cool...
I was able to get in, but I've never encountered this error before using Google Scholar through WSU.
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Update: Ok, so I wasn't actually able to get in. Typing in the captcha takes me to Google Scholar but it doesn't log me on to WSU's network. I'm using a public wireless internet network, but I was using Google Scholar with authentication here the other day and it worked fine.
Update: Ok, I'm starting to think that this is Wayne State's problem, I can't even get into their databases now, I'm getting an "IP address access denied" error or something. How frustrating! What's the point of off campus access if I can't access resources off campus?! It figures something like this would happen as soon as I was having a sudden burst of creativity...

I've gotten that before just for searching too much, in plain old Google, not Scholar or Book searches or anything.
I was too quick to blame Google, but I think it's WSU's fault... I was able to search Google Scholar fine, but it's no use if I can't be logged on to WSU's resources. I was stopped trying to search for the article through WSU's catalog too...
Can you really search too much? I would think I'd be the first to reach the quota!