I've been using rapportive for a few months and love it. It provides additional context about the person you're corresponding with - social profiles, crunchbase info, etc. It occasionally displays completely innacurate info, though. Somebody else using it recently congratulated me on a recent multimillion dollar investment... unfortunately that wasn't me, but a VC with the same name.
Rapportive is useful. I've found that I've written more personalized emails since I can see a pic of person I'm writing too.<p>It's also handy for small talk. "I saw your Tweet about Conference X, how was it?"
I used rapportive for a while months ago, but in my experience it slowed down gmail. I like the idea, but it needs to be lightening fast, or just load leisurely once gmail is up and running.
I've tried rapportive around a month ago. Couldn't figure out what it does. All I see is a Rapportive menu item at the very top of my Gmail.<p>I tried it again now, same thing. I connected to Twitter and Facebook, that didn't do anything. I don't see any widgets or new features. I'm on Win7 + Chrome.<p>Seems useless.<p>Uninstalling...