After the new Google Plus update it seems that some SEO's favorite related keywords tool is gone... I had just finished a wonder wheel scraper so i went and got the url that wonder wheel used to be at. When i run a search I get this error message:
"The search option you have selected is currently unavailable"
So i guess its good that it says its currently unavailable because that implies that it may be back soon... some people were thinking that they had just left it off the UI accidentally, but the exact same thing happened around the last "Instant" update where you had to turn it off to see the option
Im starting a petition to tell Google to bring it back... click the link to sign the twitter petition to Google.