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And GOOG-411 (didn't have a smartphone yet when they killed this, it was still useful), Google Labs (public access to experimental features in Gmail and other services), Buzz (jk nobody misses that), Reader, Code Search, Q&A, iGoogle portals, and plenty of others.

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Didn't know that Google Labs was shut down. Some of the Gmail Labs were useful - and some have probably gone mainstream by now. The one that reminds you if you use a word like "attached" in your email, but have no attachment, comes to mind. I tried at least half a dozen of them, may have only kept using one or two. Still, the Labs idea was good.

Undo send originated there as well.

Right, good point. That has saved me a few times from accidentally sending an incomplete email - luckily not anything worse :)

I've been using it for years, so I did not realised they had closed Labs in the interim.

Google Questions. I know it's been long ago and there were problems but when you needed it for real it worked wonders.

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