Allow your readers to retweet your posts. Show retweet counts for your posts. Optimized for fast rendering and large-volume sites. Tweet archive for your posts with Topsy Trackbacks. “Streaming” feature makes buttons update their tweet counts automatically as more people retweet your pages. Badges for posts that are in Topsy TopLinks. Works on all modern browsers (MSIE 7 and greater, Firefox 3+, G