Just head to http://analytics.twitter.com when signed-in
Importance: [rating=4]
Recommended link: Twitter Analytics
Previously Twitter's analytics service has been limited to advertisers, but that changed this week with an announcement via Twitter:
How to access Twitter analytics?
Just as it says in the title to this article, if you're already signed into Twitter in your browser, if you go to http://analytics.twitter.com. There is no registration process, but a little bizarrely, you just have to access the dashboard URL and you should then see updates. Until then you will just see a blank dashboard:
For more information on what you can see in Twitter's analytics see this post from Twitter introducing the Twitter Analytics dashboard.
Enjoy!
This is the type of insight you will get, but possibly you wont see this many impressions... or this amount of engagement...