Google is trying to make it as easy as possible for people to allow their readers to share the content on Buzz. They are doing it by requiring only a few clicks to create a customizable Buzz Button which can then be put on your site.
"Starting today, you'll see these buttons around the web on participating sites including: The Washington Post, The Huffington Post, Glamour, YouTube, Blogger, MySpace, GigaOM, PBS Parents, PBS NewsHour, The Next Web, TweetDeck, SocialWok, Disqus, Vinehub, and Buzzzy. Mashable and TechCrunch have updated their sites to use these new buttons too.
A number of sharing platforms, including ShareThis (pictured below), Meebo, Shareholic, AddThis and AddtoAny have also incorporated the Google Buzz button into their sharing functionality, so you'll see Buzz listed as a choice when you go to share something on many other sites around the web as well.