Install Digg, Retweet, Facebook Share & Yahoo! Buzz Sharing Buttons in Blog Posts

Add This To Del.icio.us StumbleUpon This Add to Technorati Digg This

Login To Blogger Go To > Design > Edit HTML.

and mark the tick box "Expand Widget Templates"

Then, find (CTRL+F) this code in the template.

<data:post.body/>

And immediately before it, paste this code:

<div style='float: right;'>

<table>

<tr><td>

<script src='http://digg.com/tools/diggthis.js' type='text/javascript'/>

</td><td>

<script type='text/javascript'>

tweetmeme_source = &#39;Your Twitter user name here&#39;;

</script>

<script src='http://tweetmeme.com/i/scripts/button.js' type='text/javascript'/>

</td></tr>

<tr><td>

<a href='http://www.facebook.com/sharer.php' name='fb_share' type='box_count'>Share</a><script src='http://static.ak.fbcdn.net/connect.php/js/FB.Share' type='text/javascript'/>

</td><td>

<script badgetype='square' src='http://d.yimg.com/ds/badge2.js' type='text/javascript'>ARTICLEURL</script>

</td></tr>

</table>

</div>

Replace Your Twitter user name here with your twitter user name without @

To move the place of the button, change the "right", to "left" or "center" to place buttons accordingly.
Now click Save the Template.