Oriol

Twitter Tools – Google Analytics Tagger integrats with Alex King’s Twitter Tools to tag all the URL’s published with the Google Analytics Campaign.
The final URL will look like this: <code>http://www.foo.com/?utm_source=twitter&utm_medium=post&utm_campaign=social</code>
You can read more about it here: <a href="http://www.google.com/support/analytics/bin/answer.py?hl=en&answer=55578" title="Google Analytics URL Builder" rel="nofollow ugc">URL Builder</a>

Twitter Tools – Google Analytics Tagger

Tag all your URL's posted to twitter with Google Analytics tags using Twitter Tools

Konstantin Kovshenin

Twitter Embed requires no configuration, it works out of the box right after activation. Copy a link to a tweet on Twitter.com and paste it on a line by itself in your post or page editor. When viewing the post, you’ll see that the link has been replaced with the embedded tweet with options to reply, retweet, favorite and follow.
The plugin uses Twitter’s original widgets API, the shortcode and embed HTML are available too. Embed HTML is reversed to a Tweet shortcode when HTML is filtered (for authors or contributors). The tweets themselves are cached in post meta for better performance.

Twitter Embed

Easily embed tweets in your posts and pages by posting the tweet URL on a line by itself or by using a shortcode provided by the Twitter interface.

Twitter Tools – Google Analytics Tagger vs Twitter Embed