As Twitter's Web site becomes more versatile, Twitter.com has become a target for innovative development for developers looking to bring more functionality to users, including my6sense's relevance tab which we introduced in February, and the word filter posted by Mike Grace, tapping the Kynetx platform. Seth's proximity to the +1 launch as well as his fondness for Google Chrome and HTML 5 (he's one of the more ardent advocates and presented at Google IO this year) no doubt made the interest to bring +1's to Twitter a must-do.
+1 Buttons and Share Counts In the Twitter Stream
The +1 extension for Twitter not only displays +1 next to tweets in the stream, letting you +1 them, but also shows how many other people across the platform have also done so. It's a lot like seeing how many people have favorited or retweeted a tweet within the tweet itself, data which can be harder to find. The extension itself is open source.
Seth's Tweet has Been +1'd 3 Times
Tweets I +1 Show on My Google Profile
The extension itself is JavaScript-based and only is active when on the Twitter.com domain. Seth goes into detail on his post explaining how the +1 extension works, and how he needs to wait for the entire Twitter page to load before displaying the +1 buttons, while also explaining some shortcomings that apply to polling for new tweets in the timeline. Surely beyond version 1.0, those tweaks will come. Luckily, for those who have already grabbed the extension, it should update automatically. Go get it.