Google trends will work in the morning, but by the afternoon, my students are seeing a message from google:
We’re sorry, but you have sent too many requests to us recently. Please try again later. That’s all we know.
Why are we seeing this message?
What can I do to resolve this?
I looked for other search engines to have similar search history results released for public consumption, but did not find anything that was free (lots of paid stuff for amazon/ebay search analytics).