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Or embed it with the government redirect mentioned. "Here's what Obama had to say about Google on yesterday's visit to Vermont!" http://labor.vermont.gov/LinkClick.aspx?link=http://www.goog...

Linkception. You can take that link and throw it in Google, and so on... At some point, maybe you'll hit a limit? Sounds like a fun test to run... ;)

You’ll start running into browser limits at somewhere from 2048 to 2083 characters: http://support.microsoft.com/kb/208427

Depends on the browser. Mobile browser URL limits used to be much shorter.