|Great Blogger Widgets|
http://www.addthis.com/web-button-select – The popular social bookmarking button is available for Blogger accounts.
http://code.google.com/apis/ajaxsearch/web.html – Add an AJAX powered Google search box to your blog that you can allow to search the web and your blog, or even just restrict it to the contents of your site.
http://www.bloggerbuster.com/2008/04/popular-posts-most-commented-widget-for.html – This widget will take a look at your comments, up to the last 5,000, and generate a list of which posts had the most conversation around them.
http://www.bloggerbuster.com– Display the most recent comments on your blog in this widget so that readers can join in the conversation.
http://www.jackbook.com/– Not so much a widget as a hack, this will give you the related post functionality that so many WordPress powered blogs use.
http://sharethis.com/publishers/getbutton/ – The highly customizable green button that ShareThis is known for can be added to your blog. Choose if you want it for social bookmarking, users emailing your posts and more.
Tag/Label Cloud – Gives you the ability to install a traditional tag cloud in your sidebar so people can see what you write about the most.
Mashable – Yes, now you too can share the best web-related news on your blog with the Mashable widget.
Picasa Albums – Display your public Picasa albums in your blog sidebar with this handy widget.